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Vlad [161]
4 years ago
8

Prove that if -5(x+4)=70, then x=-18

Mathematics
1 answer:
kvv77 [185]4 years ago
6 0
Input negative 18 into x and distribute. on both sides of the equal sign you should get 70=70
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Reika [66]
Perimeter is 34.5 area is 62
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4 years ago
In the following diagram,
olga2289 [7]

Answer:

  • x + 75 = 180, as these two angles form a straight angle.
  • x = 180° - 75° = 105°

<u>y and x are supplementary angles as p is transversal of l and m:</u>

  • y + x = 180°
  • y = 180° - x = 180°  - 105° = 75°

<u>z is same as 86° as vertical angles:</u>

  • z = 86°

<u>w and z are supplementary angles as g is transversal of l and m:</u>

  • w + z = 180°
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6 0
3 years ago
A function f is defined by the table shown below. Which of the following is the average rate of change of f over the interval 4
marin [14]

Answer:

Average rate of change=\displaystyle \frac{\text{Change in output}}{\text{Change in input}}

Change in input

Change in output

=\displaystyle \frac{\Delta y}{\Delta x}

Δx

Δy

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x

2

−x

1

y

2

−y

1

=\displaystyle \frac{f\left({x}_{2}\right)-f\left({x}_{1}\right)}{{x}_{2}-{x}_{1}}

x

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f(x

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7 0
3 years ago
What is the answer to 3(x-2)+15=-3(x-3)<br> i will give brainliest
lesya [120]

Answer:

x = 0

Step-by-step explanation:

3(x - 2) + 15= -3(x - 3)

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3 years ago
What system of equations would you use to solve the problem below?
enot [183]

The system of equations would be x + y = 28 and 3x + 5y = 100.

<h3>What is a system of equations?</h3>

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

Given;

A test is worth 100 points. Multiple-choice questions are worth 3 points and short-answer questions are worth 5 points.

If the test has 28 questions

Let x be multiple-choice questions

Let y be short-answer questions

The system of equations would be

x + y = 28

3x + 5y = 100

Learn more about equations here;

brainly.com/question/10413253

#SPJ1

5 0
2 years ago
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