Mathematics High School

Can somebody plz help me plz ?

Answers

Answer 1

Answer:

-5

Step-by-step explanation:

plug it in and it works

Related Questions

Solve the following inequality.Show your work. 2m + 6 > 7(m – 2)

Answers

2m + 6 > 7m - 14

Subtract 7m

-5m + 6 > -14

Subtract 6

-5m > -20

Divide by -5. And since we are dividing by a negative, the sign must be flipped.

m < 4

Find the length line segment between the points (-2,-1) and (5,6)?

Answers

Answer:

7√2 units

Step-by-step explanation:

( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] ) and ( [tex]x_{2}[/tex] , [tex]y_{2}[/tex] )

d = [tex]\sqrt{(x_{2} -x_{1} )^2 + (y_{2} -y_{1})^2 }[/tex]

( - 2 , - 1 )

( 5 , 6 )

d = [tex]\sqrt{(-2-5)^2 + (-1-6)^2}[/tex] = 7√2 units

Are the fractions equivalent?
63/72. 7/9

Answers

Answer: 9 goes into 63 7 times, but 9 does not go into

72 9 times, so the answer is no.

Step-by-step explanation:

Is my math correct? It's about slop and proportions.

Answers

Answer:

yes! it's correct. Congrats :)

Step-by-step explanation:

Answer:

Your answer is correct.

Step-by-step explanation:

(−1,4);(3,0)

(x1,y1)=(−1,4)

(x2,y2)=(3,0)

m= y2−y1 /x2−x1

0−4 /3−(−1 )

−4 /4 = −1

Explain the difference between parallel and perpendicular lines in terms of their slopes. What form of equation of a line is easiest to determine slope?

Answers

Answer:

Parallel lines have the same slope, while perpendicular lines have completely opposite slopes. So a line has a slope of 2, a parallel line would have a slope of 2, and a perpendicular line would have a slope of -1/2. The easiest form to identify the slope is standard form because it shows the slope within the equation with out having to solve the equation or convert it into another form.

unitary method examples.

Answers

Answer:

For example, if a car runs 44 km on 2 litres of petrol then we can use the unitary method to find out the kilometres it will cover on 1 litre of petrol. In other words, the method by which we find out the value of one unit and further use it to find the value of multiple units is known as the unitary method.

Step-by-step explanation:

Hope this helps!

Helppp pleaseee:))))

Answers

I hope this is the answer you were looking for.

F(x) = -x^2 - 9x
Find f(-2)

Answers

Step-by-step explanation:We are given with two functions: f(x) = 9x - 2 and g(x) = -x + 3. In this problem, the expression of f(g(x)) is asked. We first substitute g(x) to f(x) resulting to f(-x + 3) = 9 (-x + 3) - 2 equal to -9x + 27 -2 or f(g(x)) = -9x + 25.

The answer is -9x+25 hope this helps

John is performing an experiment in which a solution alternates between a clear color and a bluish-purple color at a regular time interval. He observes that the time interval between color changes is 30 seconds (s). Sally replicates the experiment with the same solution, but at a temperature that is 10 degrees Celsius (°C) higher. What is the most likely time interval between color changes at this higher temperature?

Answers

Answer:

15 seconds

Step-by-step explanation:

The given parameters for the experiment are;

The time it takes the solution to change from a clear color to a bluish-purple color at a given temperature = 30 seconds

The temperature at which Sally replicates the experiment with the same solution = 10°C higher than the temperature the experiment was carried out by John

Given that the process involves a change in color, which is a characteristic of a chemical reaction, and that the rate of a chemical reaction increases as the temperature of the reacting system is increased, we have time it takes for the solution to change color at a temperature increased by 10°C, will be a time lesser than 30 seconds

Answer:

Step-by-step explanation:

simplify -50 1/2+(-12.3)

Answers

Answer:

-62.8

Step-by-step explanation:

-50 1/2 + (-12.3)

= -101 / 2 - 12.3

= -101 - 24.6

= -125.6 / 2

= -62.8

Answer: you can use a website called math. way! Make sure its online like the website

Step-by-step explanation:

its a mathpage and it does algebra!

Solve the inequality. T/4 > 7

Answers

Answer:

T>28

Step-by-step explanation:

Multiply 4 to both sides to get your variable alone.

A teacher gave a unit test to both of her statistics classes. The mean test grade for Class A was 77 points, with a standard deviation of 5 points, whereas the mean test grade for Class B was 80, with a standard deviation of 7 points. Kyle, in Class A, received an 82 on the test, and Caleb, in Class B, received an 87. Whose performance on the unit test was better relative to their class?

Answers

Answer:

i think they would be the same

Step-by-step explanation:

77+5=82 or 77-5=72

so he is within the range of 72-82

80+7=87 80-7=73

so he is also within the range of 73-87

Since both Kyle and Caleb scored 1 standard deviation above their respective class means, we can conclude that their performances were relatively equal.

What is standard deviation?

A standard deviation is a measure of how far apart the data is from the mean.

A low standard deviation indicates that data is clustered around the mean, whereas a high standard deviation indicates that data is more spread out.

To determine whose performance was better relative to their class, we need to calculate their z-scores, which tell us how many standard deviations a particular score is from the mean.

For Kyle in Class A:

z-score = (82 - 77) / 5 = 1

This means that Kyle's score is 1 standard deviation above the mean for his class.

For Caleb in Class B:

z-score = (87 - 80) / 7 = 1

This means that Caleb's score is also 1 standard deviation above the mean for his class.

Thus, we can conclude that Kyle and Caleb's performances were comparable because they both scored one standard deviation above their respective class means.

For more details regarding standard deviation, visit:

https://brainly.com/question/23907081

#SPJ3

In which situation do the quantities combine to make 0?
1 point
Juan spent $20. The next day, he earned $10 per hour for 2.5 hours of babysitting.
Erica deposited $75 into her savings account. She withdrew $75 the following week.
The predicted high temperature for a winter day is 7 degrees. The actual temperature was 10 degrees lower.
A deep-sea diver descends 15 meters, pauses, and then descends another 15 meters.

Answers

Answer:

It would be Erica deposited $75 into her savings account. She withdrew $75 the following week.

Step-by-step explanation:

Because if she deposits that would make her have $0

What is the name of each labeled part?
B
С
B
C
E
A
E
D

Answers

Answer:

I know that B is the nucleas but I don't know the rest sorry

Answer:

A: dendrite

B: cell body

C: axon terminal

D: axon

E: nucleus

Step-by-step explanation:

a rectangle prism with a length of 5 inches, a width of 4 inches, and a height of 3 inches.

Answers

Answer:

▶◀

Step-by-step explanation:

n/a bc you didn't explain wut to do

-1/2x = -4/5
Help please

Answers

Answer:

x = 8/5

Step-by-step explanation:

first multiply both side by -1, it makes both side positive

1x/2 = 4/5

now multiply both sides by 2 to get the x by itself

x = 8/5

if they want improper fraction x = 1[tex]\frac{3}{5}[/tex]

Answer:

x=-8/5

Step-by-step explanation:

What alternatives did the colonists already try in their appeal to Great Britain, according to the text? A They have attempted to reason with the British as equal citizens. B They have pledged eternal loyalty to the crown, in hopes of perhaps gaining British favor. C They have tried many things, including minor insurrections and conflicts. D They have tried many things, including petitions, argument, and pleas to parliament and to the crown

Answers

Answer:D. They have tried many things, including, petitions, argument, pleas to parliament and to the crown

Step-by-step explanation:

What’s the slope of the line ?

Answers

Answer:

y= 2x-2

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

Find two lattice points

I chose (-2, 0) and (0, -2)

Since you are using a graph, you don't need an equation.

Starting from (-2, 0), you go down -2 points and 2 across to get to the second point.

-2/2 = -1

PLZ ANSWER BOTH QUESTION

Answers

Answer:

The value of 2 pennies and 3 dimes is 17¢. The value of p pennies and d dimes is (p×1)+(d×5)

Step-by-step explanation:

Use the formula (p×1)+(d×5).

Insert the number of pennies and dimes into the formula: (2×1)+(3×5).

Solve the equation: (2×1)+(3×5)

= 2+(3×5)

= 2+15

= 17

So, there are 17¢ in 2 pennies and 3 dimes.

The answer for question 2 is the formula written above.

I’m super mad today :()

Answers

Answer:

why?

Step-by-step explanation:

That sucks I guess.

4 multiple ( 2+3) square 2

Answers

Answer:

100

Step-by-step explanation:

4 x (2 + 3)[tex]^{2}[/tex]

for this equation u have to use PEMDAS so u have to solve the parenthesis first which is 5 then exponets which is [tex]5^{2}[/tex] which is 25 and 24 x 4 gives you 100

hope this helps, if im wrong sorry

The answer is; 100
4*(5)^2
4*25
100

The width of a rectangle is 3/4 it’s length. The perimeter of the rectangle is 350 ft. What is the length, in feet of the rectangle

Answers

Answer:

Step-by-step explanation:

The length of a rectangle is 3 units more than the width. The area of the rectangle is 54 units. What is the width, in units, of the rectangle?
please hurry

Answers

Answer:

The width is 6 and the length is 9.

Step-by-step explanation:

Factors of 54: (1, 54), (2, 2), (3, 18), and (6, 9)

6 and 9 would work because 6+3=9

What is the length of AB?
B
6x
3x + 9
65°
/65°
A
C
A. 18
B. 12
C. 3
D. 9

Answers

Answer: 18

That's the answer on

Answer:

Step-by-step explanation:

i really need help with this help please

Answers

Answer:

AB = PQ

Step-by-step explanation:

From what I learned in math last year, functions like these are equivalent by letter order. For example, A would be the same as Q in this case. That being said, AB is equivalent to PQ.

Hope this helps!

Answer:
If △ABC≅△PRQ , then AB=PQ

True or False. a radius is a segment that connects any point on the circle to the center of that circle.

Answers

Answer:

True

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

Think about it as a disk, if you were to draw a line starting at the edge of the disk and tried to draw it to the center of it you would be able to do it from any point along the outside of the circle.

is this a function? x= y-7

Answers

Answer:

yup it passes the line test

Step-by-step explanation:

Leslie is taking money out of her savings account to pay for violin lessons. After 3 lessons, her account was down to $155. After 7 lessons, she only had $95 left. How much does each lesson cost

Answers

Answer:

pog champ

Step-by-step explanation:

pog champ follow to.myinnit on twitch for a cookie

I’m not sure but I think $20

I did,,,

155 - 95 = 60

60/ 3 = 20

Because there were 3 lessons in between her 3rd and 7th lesson

Hope this helps! :)

multiple choice question:
simplify √-72 .
A) -6√2
B) 3√-2
C) 3√2i
D) 3i√2

Answers

Answer:

im really not to sure on this one. sorry dude

Step-by-step explanation:

The answer is 6i sqr rt * 2
Closest one to the answer is A

Solve for x!!!! (see attached picture) HELP!!!

Answers

The answer is X = 9.2301

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