Answer:
false
Step-by-step explanation:
solve:4x+3y=20;4x+2y=10 by matrix method
Answer:
i don't know sorry . and study well to make your future good
4/6 x 2/3 =
Help me please I’m stuck on this
Answer:
4/9 or 0.4
Step-by-step explanation:
Please help me out!
On a unit test in statistics class, the teacher determines that the mean test grade was 77.5 with a standard deviation of 5.2. What is the test grade, rounded to the nearest whole number, with a z-score of 2.4?
A.65
B.83
C.90
D.95
Answer:
C: 90
Step-by-step explanation:
PLEASE HELP THIS IS DUE TODAY!
Justify each step of the solution by stating the property that was used to get to each step.
Given: 4.5(8-x)+36=102-2.5(3x+24)
Step 1: 36-4.5x+36=102-7.5x-60
Step 2: 72-4.5x=42-7.5x
Step 3: 72+3x=42
Step 4: 3x=-30
Step 5: x=-10
Answer:
_1+5+0+8=65
Step-by-step explanation:
Col-ledge math solution hope you dont get confused
Hope this helps :)
Brainest pls?
Answer:
x= -10
Step-by-step explanation:
simplify 36 - 4.5x + 36 to -4.5x + 72
simplify 102 - 7.5x - 60 to -7.5x + 42
add 7.5x to both sides
simplify -4.5x + 72 + 7.5x to 3x + 72
subtract 72 from both sides
simplify 42 - 72 to -30
divide both sides by 3
simplify 30/3 to 10
Answer: x = -10
Find the slope of the line through the pair of points: (6,12) and (-6, -2)
Answer: The answer would be 1
Step-by-step explanation:
Rise over run or fall over run so the fall is 10 and run is 10 and 10/10 is 1.
Dave earned $12 for mowing 4 lawns. What is the rate earned per lawn mowed?
Given the line: y = -1/5x-3, what is the slope of a line parallel and perpendicular
to the function
Answer:
parallel: m= -1/5
parpendicular: m= 5
Step-by-step explanation:
parallel lines have the same slope
- 1 stays the same so - 1
5 5
parpendicular lines have the opposite reciprocal slope
- 1 flipped is - 5 turn the negative into a positive 5 or 5
5 1 1
An eagle is flying around and its velocity vvvv as a function of time tttt is given in the graph below where rightwards is the positive velocity direction.
A set of black coordinate axes are given with the vertical axis labeled "v (m/s)" and the horizontal axes labeled "t (s)". A curve that relates v to t is shown in blue. It begins with a straight line of endpoints (0,-2) and (3,4). This first line is connected to a second line with endpoints (3,4) and (4,4).
A set of black coordinate axes are given with the vertical axis labeled "v (m/s)" and the horizontal axes labeled "t (s)". A curve that relates v to t is shown in blue. It begins with a straight line of endpoints (0,-2) and (3,4). This first line is connected to a second line with endpoints (3,4) and (4,4).
What is the eagle's displacement Δx\Delta xΔxdelta, x from t=1.0 st=1.0\,\text st=1.0st, equals, 1, point, 0, start text, s, end text to 4.0 s4.0\,\text s4.0s4, point, 0, start text, s, end text?
9514 1404 393
Answer:
8 units
Step-by-step explanation:
Displacement is the area under the velocity curve. The area of interest is in the shape of a trapezoid, so we can use the formula ...
A = (1/2)(b1 +b2)h
to find the area.
Here, b1=3, b2=1, h=4, so the area is ...
A = (1/2)(3 +1)(4) = 8
The displacement is 8 units in the time from t=1 to t=4.
-6x+13=25 what is X
Answer:
-6x = 25-13
-6x = 12
x = 12/-6
x = -2
How can these terms be combined: -2x + 11 + 6x - 5 *
8 points
-8x +16
4x + 6
4x - 6
8x + 6
Lisa and Susan are driving to college together. They look at a map to find out how far they have to drive. On the map, Lisa measures the distance to be 3.5 inches. How many miles do they have to drive if the map scale is 1 in.=50ml
Answer:
3.5 * 50 =175 mi :)
Step-by-step explanation:
Maggie makes 18 muffins. She is making them for her book group, which has 12 members. If she divides the muffins equally, how many will each person get?
Answer:
1.5
Step-by-step explanation:
18/12=1.5
What division problem does the model represent? ...÷1/3
The quotient is...
What division problem does the model represent?
✔ 5/3 Divided by one-third
The quotient is ✔ 5
Step-by-step explanation:
just did it
Solve the equation: |2x + 5| = 11.
Answer:
x = -8 and x = 3
Step-by-step explanation:
Split the equation into 2 possible cases:
2x + 5 = 11
2x + 5 = -11
Then, solve these 2 equations.
2x + 5 = 11
2x = 6
x = 3
2x + 5 = -11
2x = -16
x = -8
So, the 2 solutions are x = -8 and x = 3
Which of the following is equal to 1/2 or -1/2? Check all that apply.
sin(7pi/6)
Sin(4pi/3)
Cos(5pi/3)
Cos(pi/6)
Cos(5pi/6)
Sin(5pi/6)
Answer: ITS A, C, F
Step-by-step explanation:
I JUST DID IT ON EDG 2020
Answer:
A
C
F
Step-by-step explanation:
Find all solutions in the interval [0, 2π).
2 sin^2 x = sin x
Answer:
0, π, 2π, π/6 and 5+(π/6)
Step-by-step explanation:
Rearranging, sinx (2 sinx - 1) = 0.
In [0, 2π],sin x = 0 for x = 0, π and 2π.
The other factor = 0 gives the other two solutions.
sin 5+(π/6) = sin (π−(π-6)) = sin π/6 = 1/2.
If a car travels 336 miles on 12 gallons of gas, how many miles per gallon does it average (to the nearest tenth)?
Answer:
28 miles
Step-by-step explanation:
To find how many miles per gallon the car has you would just divide the miles by how how many gallons there are.
for your example it would be 336/12 = 28
Hope is n years old. Interpret the following expression if the expression represents Hunter's age.
3n -8
A.
Hunter is 8 years younger than Hope's age.
B.
Hunter is 8 years older than 3 more than Hope's age.
C.
Hunter is 8 years younger than 3 times Hope's age.
D.
Hunter is 8 years older than 3 times Hope's age.
Answer:
its A and B
Step-by-step explanation:
Because if you do the opposite of subtracting is adding so that means you add 8 to 3 which equals to 11 years old.
so that means Hope is 11 years old
Select all the angles that are
congruent to 6.
A 1 C 3 E 7
B 2 D 4 F 8
What is the slope of the line on the graph?
Answer:
[tex]m=\frac{1}{2}[/tex]
Step-by-step explanation:
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Simply plug in 2 coordinates into the slope formula to find slope m:
(0, 2)
(-4, 0)
[tex]m=\frac{2-0}{0-(-4)}[/tex]
[tex]m=\frac{2}{0+4}[/tex]
[tex]m=\frac{2}{4}[/tex]
[tex]m=\frac{1}{2}[/tex]
JK has endpoints at J(6,-1) and K(-3,-4). If M is the midpoint of JK, approximately what is JM ?
Answer:
midpoint of J and K = (3/2,-5/2) or (1.5,-2.5)
Step-by-step explanation:
midpoint formula: (((x+x1)/2),((y+y1)/2)))
in this case J(x1,y1), and K(x,y) where J = (6,-1), and K = (-3,-4).
so: (((-3+6)/2),((-4+-1)/2))) = (((3)/2),((-5)/2))) = (1.5,-2.5) or (3/2,-5/2)
Am I right please helppppppppppppppppp
slope is the change in y over the change in x.
Using the first and last values:
Slope = (8 - -4)/ (2 - -2)
Slope = 12/4
Slope = 3
Your answer is correct
Express 14 inches: 3 feet in fraction form
Answer: 4 [tex]\frac{2}{12}[/tex]
Step 1: Convert 14 inches to feet and inches.
14 inches = 1 foot, 2 inches.
Step 2: Find the total.
4 feet, 2 inches.
Step 3: Write two of twelve inches as a fraction.
Answer = [tex]\frac{2}{12\\}[/tex]
Step 4: Write final answer down correct.
4 [tex]\frac{2}{12}[/tex]
Hope this helps you!
What is the phenomenon that many types of data analysis become significantly harder as the dimensionality of the data increases? a. The Curse of Dimensionality b. The Phenomenon of Reduction c. The Curse of Reduction d. The Phenomenon of Dimensionality
Answer:
a. The Curse of Dimensionality
Step-by-step explanation:
The phenomenon that refers to this is known as the Curse of Dimensionality. This phenomenon is basically the specific complications that only occur when dealing with far larger data sets that contain various dimensions, while these complications do not exist in smaller and less complex data sets. The larger the data set tends to get, the more complications arise. This is usually solved with Dimensionality reduction which shrinks the data sets by targeting specifics of the data and separating it.
Independent and Dependent Samples Which of the following involve independent samples?
A) Data Set 14 "Oscar Winner Age" in Appendix B includes pairs of ages of actresses and actors at the times that they won Oscars for Best Actress and Best Actor categories. The pair of ages of the winners is listed for each year, and each pair consists of ages matched according to the year that the Oscars were won.
B) Data Set 15 "Presidents" in Appendix B includes heights of elected presidents along with the heights of their main opponents. The pair of heights is listed for each election.
C) Data Set 26 "Cola Weights and Volumes" in Appendix B includes the volumes of the contents in 36 cans of regular Coke and the volumes of the contents in 36 cans of regular Pepsi.
Answer:
(A) Independent
(B) Independent
(C) Independent
Step-by-step explanation:
Independent samples are those samples are drawn from two different population.
Dependent samples are sample collected from the same population but at different times. They are also known as matched pair samples.
(A)
The data collected is for the pair of ages of actresses and actors at the times that they won Oscars for Best Actress and Best Actor categories.
That is the data is in the form (x, y). Here x represents the age of actresses and y represents the age of actors.
Since the data is collected from two different population of male and female, the sample are independent.
(B)
The data collected is for the heights of elected presidents along with the heights of their main opponents.
Again the data is in the form (x, y). Here x represents the heights of elected presidents and y represents the heights of the main opponents.
The samples collected is independent.
(C)
The data collected is for the volumes of the contents in 36 cans of regular Coke and the volumes of the contents in 36 cans of regular Pepsi.
Again the data is in the form (x, y). Here x represents the volumes in the regular Coke cans and y represents the volumes in the regular Pepsi cans.
The samples collected is independent.
Jasmine walks three dogs after school. She brings dog
treats for the dogs. She gives 4 treats to Tucker. Then she splits the
remaining treats between Bogey and Murphy, who get 3 treats each.
How many treats did Jasmine start with? Solve the problem by working
backward, and by writing and solving an equation.
Answer:
if bogey and murphy each get 3 treats and tucker gets 4 then the total is 3+3+4=10
Step-by-step explanation:
Jasmine starts with 10 treats.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
She gives 4 treats to Tucker.
Then splits the remaining treats between Bogey and Murphy, who get 3 treats each.
So, if bogey and murphy each get 3 treats and tucker gets 4 then
= 3+3+4
=10 treats
Hence, at beginning Jasmine starts with 10 treats.
Learn more about Unitary Method here:
https://brainly.com/question/22056199
#SPJ2
Perform the following Operations on fraction 1/5÷4/5=?
Answer: 1/ 4
Step-by-step explanation:
1/5 x 5/ 4 reduce the numbers with the greatest common factor 5
1/4
1 is ontop 4 is in the bottom 1/4
(SAT Prep) Rays
OM
,
ON
, and
OP
coincide at time t=0. At the same instant in time,
OM
and
OP
begin to rotate in the plane about point O, but in opposite directions. Ray
ON
remains fixed. Ray
OM
rotates at a constant rate of 3° per second with respect to
ON
, while
OP
rotates at a constant rate of 6° per second. What is the smallest positive value of t, in seconds, in which rays
OM
and
OP
will coincide again? When t=30 min, how many more revolutions has ray
OP
completed than ray
OM
?
Answer:
T=40 sec. OP does 15 revolutions more than OM.
Step-by-step explanation:
hiiiiiii
know the answer! This is my first answer!!! I hope its correct, i trple checked it! :)
HOPE YOU ENJOYYYYYY!!
multiply
3 2/5 x 2 1/3
Answer:
in simplest form its 119/15 but in a different form its 7 14/15
Step-by-step explanation:
-675% as a decimal. please help, my grades are really low lol
Answer:
-6.75. Hope your grades get better!
Step-by-step explanation:
Answer:
-6.75
Step-by-step explanation: