MATHEMATICS HIGH SCHOOL

Select the correct solution set.-7x ≥ 56

{x | x ≤ -8}
{x | x ≥ -8}
{x | x ≥ 8}

Answers

Answer 1
Answer: -7x ≥ 56.

Divide both sides by -7, and the inequality sign reverses, because we are dividing by a negative number.

The sign also reverses when you multiply both sides of inequality by a negative number.

-7x/-7   ≤   56/-7

x  ≤ -8

The answer is the first option.

{x | x ≤ -8}

This simply means x, such that x is less than or equal to -8.

I hope this helped.

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Quadrilateral ABCD has vertices A(6,-3), B(8,-1), C(3,-1), and D(1,-3). Quadrilateral WXYZ has vertices W(1,6), X(2,7), Y(-1,7), and Z(-2,6). Which is true regarding the two shapes?

Answers

From the vertices of these two quadrilateral, you can get they are both parallelogram and they have the same angels. You can judge the choices according to the information you get from the vertices, from length and angel.

Answer:

Answer is option D

Step-by-step explanation:

Edge 2022

What is the value of the expression below when y = 8 and z = 9?
5y – 2z

Answers

Answer:

\boxed {\tt 22}

Step-by-step explanation:

We are given the expression:

5y-2z

We want to find the value of the expression when y=8 and z=9. Therefore, we must substitute 8 in for y and 9 in for z.

5(8)-2(9)

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

Multiply 5 and 8.

40-2(9)

Multiply 2 and 9.

40-18

Subtract 18 from 40.

22

The value of the expression 5y-2z at y=8 and z=9 is 22.

What is the soultion to -3x7=28.

Answers

the answer is x= -29/21

The perimeter of a rectangle is 48 in. If the length is twice the width, what is the length of the rectangle?

Answers

Step one: We need to find the formula for perimeter. And we can't just say "count all the sides". How can we express it? It's length + length + width + width, right? Let's size that down a little bit. 2*length 2*width. We'll use w to express "width" and 2w to express "length".
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You can check it by substituting the different values for length and width into the equation 2w+2l=perimeter.
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Clara played a video game with three levels. It took her 2 hours and 25 minutes to beat the first level and 2 hours and 25 minutes to beat the second level. Clara played the final level for 1 hour and 50 minutes to finish the game. She beat the final level and stopped playing at 5:20 pm . What time did Clara start playing the game

Answers

Answer: 11:40 am

Step-by-step explanation:

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Therefore Clara started playing video games at 11:40am

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Answers

Answer:

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Step-by-step explanation:
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