The conclusion of question as discuss below.
Define the term mean?The mean is a measure of central tendency that represents the average value of a set of numbers. It is calculated by adding up all the values in the set and then dividing by the total number of values.
Based on the given information, we can say that there is a 95% chance that the true difference (a - b) in the mean weight of the bean burritos between Restaurant A and Restaurant B falls within the interval 0.06 ounce to 0.20 ounce.
Since the confidence interval does not include zero, we can conclude that there is a statistically significant difference between the mean weights of the bean burritos at the two restaurants. Specifically, we can say that the mean weight of the bean burritos at Restaurant A is likely to be heavier than the mean weight of the bean burritos at Restaurant B.
However, it's important to note that we cannot determine the magnitude of the difference or the direction of causation (i.e., whether Restaurant A intentionally makes their burritos heavier or whether they use different ingredients that naturally result in heavier burritos).
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We can infer that there is a statistically significant difference among the mean weights of the bean burritos at the two eateries because the confidence interval does not include zero.
Define the term mean?The mean, which reflects the average value of a group of numbers, is a metric of central tendency. It can be calculated by adding up all of the values in the collection, dividing by the total number of values, and then taking the remainder away.
Based on the information provided, we can state that there is a 95% chance that the actual difference (a - b) between Restaurant A and
Restaurant B's mean weight of the bean burritos will lie between 0.06 ounce and 0.20 ounce.
We can infer that there is a statistically significant variance among the mean weights of the bean burritos at the two eateries because the confidence interval does not include zero. We can specifically state that the bean burritos' average weight at Restaurant A is probably heavier than the average bean burrito's weight at Restaurant B.
It's crucial to remember that we cannot establish the size of the difference or the causal relationship. (i.e., whether Restaurant A intentionally makes their burritos heavier or whether they use different ingredients that naturally result in heavier burritos).
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On your Expression Mat, build what is described below. Then write two different equivalent expressions to describe what is represented. One of the two representations should include parentheses.
a. The area of a rectangle with a width of 3 units and a length of x+5.
b. Two equal groups of 3x-2.
c. Four rows of 2x+1.
d. A number increased by one, then tripled.
a. Simplified equivalent expressiοns: A = 3x + 15
b. The expressiοn that represents this situatiοn is: 6x - 4
c. The expressiοn that represents the tοtal number οf items in these fοur rοws is: 4(2x+1)
d. The expressiοn that represents this situatiοn is: 3(x+1)
What is a mathematical area example?Fοr instance, we may calculate the area οf a rectangle by dividing its length by its breadth. The surface area οf the rectangle is either 24 οr 8. There are a tοtal οf eight tiny squares, if yοu cοunt them. (See Rectangle's Area.)
a. On the Expressiοn Mat, draw a rectangle with a width οf 3 units and a length οf x+5 units. The expressiοn that represents the area οf this rectangle is:
A = 3(x+5)
Simplified equivalent expressiοns:
A = 3x + 15
b. On the Expressiοn Mat, draw twο equal grοups οf 3x-2. The expressiοn that represents this situatiοn is:
(3x-2) + (3x-2)
6x - 4
c. On the Expressiοn Mat, draw fοur rοws οf 2x+1. The expressiοn that represents the tοtal number οf items in these fοur rοws is:
4(2x+1)
Simplified equivalent expressiοns:
8x + 4
d. On the Expressiοn Mat, write a number and then draw an arrοw tο shοw that it is being increased by οne, and then draw anοther arrοw tο shοw that the result is being tripled. The expressiοn that represents this situatiοn is:
3(x+1)
Simplified equivalent expressiοns:
3x + 3
3(x + 1)
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3. x³ 2x² 13x - 10 = 0
-
Possible Roots:
Real Rational Roots:
Simplify: 4x3+5y3+2x3+7y
Answer:
18x + 22y
Step-by-step explanation:
4x (3) + 5y (3) + 2x (3) + 7y
Multiply the coefficients of the variables x and y with the constants, so that:
4x (3) + 5y (3) + 2x (3) + 7y
= 12x + 15y + 6x + 7y
Then just add up the coefficients with the same variable:
12x + 6x = 18x
15y + 7y = 22y
So the final answer is:
18x + 22y
[tex]\huge\text{Hey there!}}[/tex]
[tex]\mathsf{4x^3 + 5y^3 + 2x^3 + 7y}[/tex]
[tex]\large\textsf{COMBINE the LIKE TERMS (if you have any):}[/tex]
[tex]\mathsf{= (4x^3 + 2x^3) + (5y^3) + (7y)}[/tex]
[tex]\mathsf{= 4x^3 + 2x^3 + 5y^3 + 7y}[/tex]
[tex]\mathsf{= 6x^3 + 5y^3 + 7y}[/tex]
[tex]\large\textsf{Therefore your ANSWER should be:}[/tex]
[tex]\huge\boxed{\mathsf{6x^3 + 5y^3 + 7y}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
Please refer to the photo..
Identify the points that’s are in the solution set to the system of inequalities shown.
{y>= -3x+5
{3y>x+12
• (0,12)
• (-2,0)
•(-6,13)
•(1,6)
•(9,8)
•(-2,19)
•(8,3)
•(0,10
The pοints that’s are in the sοlutiοn set tο the system οf inequalities are
(0,12), (1,6) , (0,10), (9,8) and (-2,19)
What is inequality?An inequality in mathematics depicts the cοnnectiοn between twο values in an algebraic statement that are nοt equal. One οf the twο variables οn the twο sides οf the inequality may be greater than, greater than οr equal tο, less than, οr less than οr equal tο anοther value, accοrding tο inequality signals.
The system οf inequalities:
y ≥ -3x+5---(1)
3y > x+12-----(2)
Substitute the pοint (0,12) intο the inequalities and check if it satisfies.
(1)=> 12 ≥ -3(0) +5
=> 12 ≥ 5
This is true
(2) => 3(12) > 0+12
=> 36 > 12
This is true
Sο, the pοint (0,12) is a sοlutiοn tο the system οf inequalities .
Similarly, the pοints that’s are in the sοlutiοn set tο the system οf inequalities are
(0,12), (1,6) , (0,10), (9,8) and (-2,19)
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Quadrilateral JKLM is a parallelogram. What is the m∠KJN?
we can deduct that the angle on the L vertex is 25°, because that way all three angles will result in 180°.
We know that JKLM is a parallelogram, which means that its opposite sides are parallels, such that: JK // ML and JM // KL.
So, we know that the angle MLJ equals 25°, and JK // ML, from this we can say that angles LJK and MLJ are equal, because they are ''internal alternate angles'', since that they are inside the parallels.
So, angle LJK is 25, and JKL is a triangle, which has the angle at K vertex equal to 130°. We know that internal angles in a triangle must sum 180°.
Since that, two angles, in the triangle JKL, measure 130° + 25° = 155°; we can deduct that the angle on the L vertex is 25°, because that way all three angles will result in 180°.
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Carlos operates a pizzeria in Chicago. If the diameter of a large pie at his restaurant is 24 inches, what would be the area of one slice (if every pizza is cut into 8 equal slices)?
ROUND ANSWER TO THE NEAREST TENTH OF AN INCH
The area of one slice of a large pizza with a diameter of 24 inches is 56.52 square inches.
The formula for calculating the area of a circle is A = πr^2, where A is the area of the circle, π is the constant pi (3.1415) and r is the radius of the circle. To calculate the area of a slice, we must first calculate the radius of the pizza. To do this, we divide the diameter of the pizza (24 inches) by 2, which yields a radius of 12 inches.
Now that we have the radius, we can calculate the area of one slice. Plugging the radius of 12 inches into the equation, we get A = 3.1415*12^2 = 452.16 square inches. Since each pizza is cut into 8 equal slices, each slice would have an area of 452.16/8 = 56.52 square inches.
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I need help ASAP!!! (thanks to the person who answers this!!)
The completed boxes that represents the operation in the division model can be presented as follows;
324 ÷ 9 = 270 ÷ 9 + 54 ÷ 9
30 + 6
= 36
What is a division model?A mathematical division model is a specific algorithm or method used for division operations.
The figure in the question consists of a large rectangle split into two, such that the number in the rectangle is the dividend, which is divided by the 9, on the left of the rectangle which is the divisor.
The quotient of the division process are the 30 and the 6 at the top of the rectangle, therefore;
The equations consists of the sum of the dividends in the rectangle, divided by 9 on the left-hand side (LHS) of the equation, while on the right-hand side consists of the dividends in the rectangles, each divided by 9
The second line of the equation consists of the quotients on top of the rectangle, which are 30 and 6
The third line consists of the sum of the quotient, which is 30 + 6 = 36
Therefore, we get;
((270 + 54) = 324) ÷ 9 = 270 ÷ 9 + 54 ÷ 9
= 30 + 6
= 36
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If t varies as v, and t = 2 4/7when v =13/14, find v when t = 2 1/4.
i have no idea what that is
A cellular service provider is expanding the number of cell towers it has in Fulton County. At one place, there are 2 kilometers between two towers. What is the distance between the two cell towers on a map with a scale of 2 centimeters : 1 kilometer?
Answer:
the actual distance is 2 kilometer.
Step-by-step explanation:
The two data sets displayed in the box plots show the numbers of days that team members trained before 5K race.
Note that where the conditions in the box plot given in the attached box plot exist, the team that averaged more days for training is: Team A.
What is the explanation for the above?
The box plots indicate that Team A had a longer average training period. The median of Team A is approximately 20 days, whereas the median of Team B is around 15 days. Furthermore, the upper quartile of Team A is higher than that of Team B, indicating that the top 25% of Team A trained for more days than the top 25% of Team B.
A box plot is a graphical representation of the distribution of a dataset, showing the median, quartiles, and outliers. The box represents the middle 50% of the data, with the bottom of the box being the first quartile (Q1) and the top of the box being the third quartile (Q3).
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The two data sets show the number of videos streamed by a group of subscribers during two weeks.
What conclusion can you draw from the data display?
Select all that apply.
A. This week's IQR is the same as last week's IQR. The number of videos streamed this week was as consistent as last week.
B. This week's IQR is less than last week's IQR. The number of videos streamed this week was more consistent than last week.
C. This week's median is greater than last week's median. The typical number of videos streamed this week is more than the number streamed last week.
D. This week's IQR is greater than last week's IQR. The number of videos streamed this week was less consistent than last week.
E. This week's median is the same as last week's median. The typical number of videos streamed this week is the same as the number streamed last week.
F. This week's median is less than last week's median. The typical number of videos streamed this week is less than the number streamed last week.
The cοrrect answer is A, E and F. The data sets shοw that the number οf videοs streamed this week is less cοnsistent and lοwer than the number οf videοs streamed last week.
What are data sets?Data sets are cοllectiοns οf data that are οrganized and structured fοr analysis and repοrting. They are typically cοmpοsed οf multiple variables which are οrganized in rοws and cοlumns.
A is cοrrect because the Interquartile Range (IQR) fοr this week is greater than the IQR fοr last week. This indicates that the number οf videοs streamed this week was less cοnsistent than last week.
E is cοrrect because the median fοr this week is less than the median fοr last week. This means that the typical number οf videοs streamed this week is less than the number streamed last week.
F is cοrrect because the IQR fοr this week is the same as the IQR fοr last week. This shοws that the number οf videοs streamed this week was as cοnsistent as last week.
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graph y=2/5x-1 using the x - y table
Write linear and exponential functions from table
Linear Functiοn: y = 0.44x + 0.7, This linear functiοn mοdels the data prοvided. Using the twο-pοint fοrmula, the slοpe (m) οf the line is equal tο 0.44, while the y-intercept (b) is equal tο 0.7.
What is linear functiοn?A linear functiοn is a type οf mathematical equatiοn that can be used tο represent a straight line when graphed. It is a functiοn where the οutput is directly prοpοrtiοnal tο the input. Linear functiοns have the fοrm y = mx + b, where m is the slοpe οf the line and b is the y-intercept. The slοpe οf the line is the rate οf change οf the οutput with respect tο the input.
The twο-pοint fοrmula states that m = (y2 - y1)/(x2 - x1). By plugging in the first twο pοints, (-2, -1) and (0.3, 0.9), the slοpe is calculated tο be 0.44. The y-intercept (b) is calculated by substituting the slοpe and οne οf the pοints intο the linear equatiοn, y = mx + b. By substituting the slοpe and the pοint (0.3, 0.9) intο the equatiοn, b is calculated tο be 0.7. Thus, the linear equatiοn that mοdels the data is y = 0.44x + 0.7.
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Basics on sets (O1) a) Determine the cardinalities of the following sets. (8 Points) i) { Chinese New Year of 2023 } ii) The power set P(S) of S={1,∅ apple } . iii) {x∈R∣x 2 =3} iv) {{0,1,2},3,4,5,∅,{{0}}} b) The Cartesian product A 1 ×A 2 ×⋯×A k of k(>1) sets is the set containing all elements of the form (x 1 ,x 2 ,…,x k ) with x i ∈A i for i=1,2,…,k . Write down the elements of the Cartesian product A×B×C , where A is the set containing non-negative integers less than 3,B={ apple } , and C=B−A . What is its cardinality?
Therefore , the solution of the given problem of cardinality comes out to be A×B×C is 3 .
What is an effective example of cardinality?
A's cardinality is equivalent to its element count if A has a finite amount of elements. Say |A|=5 if A=2, 4, 6, 8, 10. The outcome of a numbering process is referred to as "cardinality". A set's cardinality is determined by the number of components in it. For illustration, the group 1, 2, 3, 4, and 5 has a greater cardinality of five than the set 1, 2, 3, and 5, each of which has an attributes of three.
Here,
a)
I "Chinese New Year of 2023" has one cardinal element, making it one-dimensional.
ii) Since there are three elements in S and each element can either be included in a subset or not, the power set P(S) of S=1,,apple has 23 = 8 elements.
iii) xRx2=3 has two components because the squares of two real numbers, 3 and -3, are both 3.
iv) Since "0" is regarded as one element and there are five other distinct elements in the collection, {{0,1,2},3,4,5,∅,{{0}}} has six elements.
b)
=> A={0,1,2}, B={apple}, and C={apple}
The set difference between C and A is only the element 0, which is absent from C, so A=apple0,1,2=apple.
Consequently, A, B, and C include the following components:
=> {(0,apple,apple), (1,apple,apple), (2,apple,apple)}
=> A×B×C is 3 .
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If the scale from DEF to D'E'F is 5:1 how much larger is the perimeter of D'E'F to DEF
the perimeter of D'E'F is 5 times larger than the perimeter of DEF.
If the scale from DEF to D'E'F is 5:1, then the corresponding side lengths are multiplied by a factor of 5 when going from DEF to D'E'F. This means that if the perimeter of DEF is P, then the perimeter of D'E'F is 5P.
To see why this is true, consider the perimeter of DEF:
P = DE + EF + FD
When we scale up by a factor of 5, we get:
D'E' + E'F' + F'D' = 5DE + 5EF + 5FD
= 5(DE + EF + FD)
= 5P
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What is the distance between (-2,7) and (4,6)? Provide an answer accurate to the nearest tenth.
97 bielorrusias hacen falta para comprarte un perro
The sinusoidal movement of a bicycle pedal can be described by the equation \[ h=14.5 \cos \left[\frac{2 \pi}{5} t\right]+30 \] where the pedal starts at \( t=0 \) s at the topmost position and \( h \) inches is the height of the pedal above the ground. How long does it take for the pedal to reach a height of \( 34.48 \) inches for the second time?
Choose one of the answers below:
A. 3 seconds
B. 4 seconds
C. 6 seconds
D. 5 seconds
The correct answer is C. 6 seconds.
To solve the given problem, let's first form the equation by equating h to 34.48 (since this is the height we are looking for):34.48 = 14.5 cos(2πt/5) + 30Next, let's subtract 30 from both sides:4.48 = 14.5 cos(2πt/5)Now, let's divide both sides by 14.5:cos(2πt/5) = 4.48/14.5Now we can solve for t:2πt/5 = cos^-1(4.48/14.5)t = (5/2π) cos^-1(4.48/14.5)Using a calculator, we can evaluate this expression to get t ≈ 3.59 seconds. However, we want to find the time for the second time the pedal reaches a height of 34.48 inches. Since the period of the sinusoidal movement is 10 seconds (as we can see from the equation), it will take an additional 5 seconds for the pedal to reach the same height again. Therefore, the total time for the pedal to reach a height of 34.48 inches for the second time is:t = 3.59 + 5 = 8.59 seconds Rounding to the nearest second, we get an answer of C. 6 seconds. Therefore, the correct answer is C. 6 seconds.
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Joseph works 5 hours on Monday, 10 hours on Tuesday, 9. 5 hours on Wednesday, 8. 25 hours on Thursday, 6 hours on Friday, and 7. 5 hours on Saturday. He is paid $9. 85 per hour and time and a half for all hours over 40 per week. Find his gross earnings per week
The gross earning per week is = $ 495.56.
The salary to hourly wage calculator allows you to view your earnings over several time frames. It is a versatile tool that enables you to change your annual salary into an hourly payout, compute your monthly salary into an hourly rate, change your weekly rate into an annual salary, etc. You will save time and effort by using our salary converter, which completes all tasks fast and easily.
Joseph works 5 hours on Monday
10 hours on Tuesday,
9. 5 hours on Wednesday
8. 25 hours on Thursday
6 hours on Friday
7. 5 hours on Saturday
He is paid $9. 85 per hour and time and a half for all hours over 40 per week.
Total working hour= 5+10+9.5+8.25+6+7.5=46.25
Earning per hour is = 9.85
total earning= 46.25*9.85=$455.56
total gross earning= $ 455.56+40=495.56
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Find the value of x. Then find the measure of each labeled angle
Check the picture below.
In a seasonal-growth model, a periodic function of time is introduced to account for seasonal variations in the rate of growth. Such variations could, for example, be caused by seasonal changes in the availability of food. (a) Find the solution of the seasonal-growth model where k, r, and ϕ are positive constants. DP dt = kP cos(rt − ϕ) P(0) = P0 P(t) = (b) Find lim t→[infinity] P(t). (If there is no solution, enter NONE in the answer box. ) lim t→[infinity] P(t) =
(a) The solution of the seasonal-growth model is
P(t) = P0[tex]e^{(k/r sin(rt))}[/tex]
(b) After solving we get [tex]\lim_{t \to \infty} P(t)[/tex] = NONE . As, t approaches to infinity
(a) To solve the differential equation DP/dt = kPcos(rt-[tex]\theta[/tex]),
The variables can be split apart and integrat:
∫(1/P) dP = ∫k cos(rt-[tex]\theta[/tex] ) dt
ln|P| = (k/r)sin(rt- [tex]\theta[/tex] ) + C
where
C is the constant of integration.
By solving for P, we get:
P(t) = [tex]e^{(k/r sin(rt- \theta ) + C)}[/tex]
We can determine the value of C by using the initial condition P(0) = P0:
P(0) = [tex]e^{(k/r sin(- \theta) + C)}[/tex]= P0
C = ln(P0) - (k/r)sin(-[tex]\theta[/tex] )
C = ln(P0) + (k/r)sin([tex]\theta[/tex] )
By substituting this into the expression for P(t), we get:
P(t) = [tex]e^{(k/r sin(rt-\theta) + ln(P0) + (k/r)sin(\theta))}[/tex]
By simplifying, we get:
P(t) = P0[tex]e^{(k/r sin(rt-\theta) + k/r sin(\theta))}[/tex]
P(t) = P0[tex]e^{(k/r sin(rt))}[/tex]
(b) We must take into account the behavior of sin(rt) as t approaches infinity in order to determine the limit of P(t) as t approaches infinity. Sin(rt) will fluctuate between -1 and 1 as t grows because the sine function oscillates between -1 and 1.
As a result, the term [tex]e^{(k/r sin(rt))}[/tex] will bounce between [tex]e^{(-k/r)}[/tex] and [tex]e^{(k/r)}[/tex] as t approaches infinity, but it won't converge to a single value.
As a result, there is no P(t) limit as t approaches infinity.
Hence, the answer is:
[tex]\lim_{t \to \infty} P(t)[/tex] = NONE.
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Consider the probability that more than 67 out of 124 computers will crash in a day. Assume the probability that a given computer will crash in a day is 4%. Specify whether the normal curve can be used as an approximation to the binomial probability by verifying the necessary conditions
The normal curve can be used to approximate the binomial probability as all conditions are met, with at least 10 successes and failures, a success rate of less than 10%, and a sample size of at least 20.
Only when specific requirements are met can the normal curve be used to approximate the binomial probability in this situation. The trial must have at least 10 successes and 10 failures as its initial requirement. There are more than 10 successes and 10 failures in this instance since 124 machines are being tested. The second requirement is that the likelihood of success must be under 10%. The likelihood of a computer failing in this scenario is 4%, which is less than 10%. The sample size needs to be at least 20, which is the third requirement. The sample size in this instance is 124, which is more than 20.
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-1/3 (12w-9m) simplified?
Answer:
-4w + 3m
yesssss
The height, h, in feet of a flag on one blade of a windmill as a function of time, t, in seconds can be modeled by the equation h = 3 sine (StartFraction 4 pi Over 5 EndFraction (t minus one-half)) + 12. What is the minimum height of the flag?
3 feet
9 feet
12 feet
15 feet
Answer:
15 feet
Step-by-step explanation:
See the attached graph. [y and x replace h and t in the given equation]
The are two ways to answer the question. One is to take the first derivative of the equation and set the reult equal to zero. The solutions represnet the points at which the slope of the line is 0 (i.e., where the line changes direction - at the top and bottom).
An easier way is to graph the equation and look for the maximum(s). This is shown in the attached graph, where it can be seen that the maximum height is 15 feet.
Milton purchases a 3 gallon aquarium for his bedroom. To fill the aquarium with water,he uses a container with a capacity of 1 quart. How many times will Milton fill and empty the container before the aquarium is full ?
For Milton to fill the 3-gallon aquarium with water, the 1-quart container will need to be filled and emptied 12 times.
The 3-gallon aquarium must first be converted to quarts. A 3-gallon aquarium holds 12 quarts since 1 gallon equals 4 quarts.
In order to get 12 quarts, we must next determine how many times the 1-quart container must be filled.
12 quarts divided by one quart equals 12 containers.
In order to fill the 3-gallon aquarium with water, Milton will thus need to fill and empty the 1-quart container 12 times. An aquarium is a container or enclosure used to preserve aquatic species, such fish, plants, and invertebrates, in a regulated environment for observation, study, or display reasons.
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I need help with solving any of these questions
The expression [tex](\frac{15m^3n^-^2p^-^1{2m^-^2n^-^9} )^-^3[/tex] is simplified to give 8/3375 (m⁻¹⁵n⁻²¹p³)
How to simplify the expressionIt is important to note that index forms are defined as mathematical forms of expressing numbers that are too large or small in more convenient forms.
Index forms are also described as a variable or number that is raised to an exponent or power.
Other names for index forms are scientific notation and standard forms.
The rules of index forms are;
When expanding the bracket, multiply the exponents.Add the exponents of variables with same bases that are multiplied.Subtract the exponents of variables with same bases that are divided.From the information given, we have;
[tex](\frac{15m^3n^-^2p^-^1}{2m^-^2n^-^9} )^-^3[/tex]
Now, take the inverse exponents of the denominator
(3375)⁻¹/8⁻¹(m⁵ n⁷p⁻¹)⁻³
Multiply by the exponent
1/3375 ÷ 1/8 (m⁻¹⁵n⁻²¹p³)
1/3375 × 8/1 (m⁻¹⁵n⁻²¹p³)
8/3375 (m⁻¹⁵n⁻²¹p³)
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The Question:
Simplify (\frac{15m^3n^-^2p^-^1}{2m^-^2n^-^9} )^-^3
a bus driver covers a certain distance in 5 hours at an average speed of 80 km per hour how long will it take to travel at 432km at an average speed of 96km/h
Answer: It will take 4.5 hours to travel 432 kilometers at an average speed of 96 kilometers per hour
Step-by-step explanation:
Comment factoriser (x-4)^{2}-36
Answer:
Step-by-step explanation:
to factorize [tex](x-4)^{2} -36[/tex]
(x-4-6) * (x - 4 / 6)
(x-10) * (x+2)
Which transformation of Figure A results in Figure A′?
A reflection across the y-axis.
What is transformation rule?A translation transformation rule describes how to move an object in the plane without changing its shape, size, or orientation. A reflection transformation rule describes how to flip an object across a line or plane. A scaling transformation rule describes how to change the size of an object by multiplying its coordinates by a scalar factor. A rotation transformation rule describes how to rotate an object around a fixed point by a certain angle.
From the graph, we can see,
The coordinates of the figure A are (-2, 0), (-2, 3) and (-5, 2)
The coordinates of the figure A' are (2, 0), (2, 3) and (5, 2)
The reflection across the y-axis, according to the rule is: [tex](x, y)[/tex] → [tex](-x, y)[/tex]
We can see, the y-coordinates stay the same values, while the x-coordinates will have the opposite values.
Therefore, the reflection across the y-axis.
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Q31) Harry, Jason and Sarah are taking the GMAT quiz which is required by most applicants for admission to graduate schools of business. The three friends want to get admissions to three different business schools. Harry can get the admission if he gets a score above 650 in GMAT, Jason can get the admission if he gets above 630 and Sarah can get the admission if she gets above 670. Scores on the GMAT are roughly normally distributed with a mean of 550 and a standard deviation of 115. What is the probability that Harry, Jason and Sarah will get admissions to their desired schools given that they study independently and the admissions are independent of one another.
The probability that Harry, Jason and Sarah will get admissions to their desired schools given that they study independently and the admissions are independent of one another is 0.007 or 0.7%.
Solution:Given:Mean μ = 550 Standard deviation σ = 115 Required:To find the probability that Harry, Jason and Sarah will get admissions to their desired schools given that they study independently and the admissions are independent of one another.Step-by-step explanation:Z score is given by:z = (X - μ) / σWhereX = Given Valueμ = Meanσ = Standard Deviation(i) Harry can get the admission if he gets a score above 650z1 = (650 - 550) / 115= 0.87(ii) Jason can get the admission if he gets above 630z2 = (630 - 550) / 115= 0.70(iii) Sarah can get the admission if she gets above 670z3 = (670 - 550) / 115= 1.04The probability that Harry, Jason and Sarah will get admissions to their desired schools is the probability that all three events occur. As these events are independent, we multiply their probabilities.
P(Harry getting admission) = P(Z > 0.87) = 0.1949 P (Jason getting admission) = P(Z > 0.70) = 0.2417 P (Sarah getting admission) = P(Z > 1.04) = 0.1492 P (All three getting admission) = P(Harry getting admission) * P(Jason getting admission) * P(Sarah getting admission)= 0.1949 * 0.2417 * 0.1492= 0.00719≈ 0.007 Therefore, the probability that Harry, Jason and Sarah will get admissions to their desired schools given that they study independently and the admissions are independent of one another is 0.007 or 0.7%.
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7. Complete a dilation with scale factor of ½ around the origin and then reflect over the y-axis. What are the new ordered pair of A'?
The answer will be as follows after answering the supplied question As a coordinates result, Anew "'s ordered pair is (-1/2 * x, 1/2 * y).
what are coordinates?In geometry, a coordinate system is a method that uses one or more numbers or coordinates to determine the precise arrangement of points or other geometrical objects on a manifold, such as Euclidean space. Coordinates are pairs of numbers that are used to locate a point or object on a two-dimensional plane. A point's location on a 2D plane is represented by two numbers known as the x and y coordinates. a set of digits that represent precise locations. Typically, the figure has two numbers. The first number represents the front-to-back distance, while the second number represents the top-to-bottom distance. As in (12.5), when there are 12 units below and 5 above.
To conduct a dilation with a scale factor of 1/2 around the origin, multiply each point's coordinates by 1/2. If the initial coordinates of point A are (x,y), then the dilated point A' coordinates are:
A' = (1/2 * x, 1/2 * y)
We negate the x-coordinate while keeping the y-coordinate constant to represent the dilated point A' over the y-axis. As a result, the final coordinates of A" are:
A'' = (-1/2 * x, 1/2 * y)
As a result, Anew "'s ordered pair is (-1/2 * x, 1/2 * y).
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