MATHEMATICS MIDDLE SCHOOL

What value of z is a solution to this equation?
-29=6z–17
z=-4
or
z=-2

Answers

Answer 1

Answer:

Answer:

z = -2

Step-by-step explanation:

Sbstitute it in for z in the equation.

Answer 2

Answer: 1) add 17 to both sides -12=6z
2)divide both sides but -2=z

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The cross section of a metal ingot is a trapezoid. The cross section has an area of 39 square centimeters. The top base of the cross section is 12 centimeters. The length of the bottom base is 2 centimeters greater than the top base. How tall is the metal ingot?

Answers

metal ingot is 5cm tall

Factor the following.

Answers

Answer: E

Step-by-step explanation:

(3x^2 - 8) (3x^2 + 8)

You can get to the original equation by:

3x^2 * 3x^2 = 9x^4

-8 * 8 = - 64

9x^4 - 64

Answer:

E. (3x^2-8)(3x^2+8) is the correct answer.

Step-by-step explanation:

To factor this we use the differenceoftwosquaresformulabecause there are no common terms here.

9x^2-64

The square root of 9x^2= 3x^2

The square root of 64 is 8

(3x^2-8)(3x^2+8)

= 9x^2-64

You get back the answer. So it's correct.

For a certain game, the probability of choosing a card with the number 13 is 0.008. What is the probability of not choosing card 13?

Answers

0.992 is the probability

use subtraction :D

What is the reciprocal of 1 2/3?

Answers

1 2/3 is the same as 5/3, so the reciprocal is 3/5

it would be 5\3 but you have to switch the fraction so the true answer is 3]5 hope this helps

In the expression 12a+5, identify. The coefficient

Answers

A coefficient is a number multiplied by a variable.

In this case, our variable is a.
The coefficient is 12.

(PS: The +5 that isn't being multiplied by a variable is called a constant)

The number of eggs in the refrigerater e decreased by 5 equals 18