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3 years ago

The root of the equation z + 4 = -8 is

Mathematics

1 answer:

tangare [24]3 years ago

3 0

Answer:

z = -12

Step-by-step explanation:

z + 4 = -8

so, z = -8 - 4

z = -12

I think this is the answer, hope it helps.

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For what values of x is x^2 + 2x = 24 true?

maw [93]

Answer:

$x = -6, x = 4$

Step-by-step explanation:

Step 1: Factor

Subtract 24 from both sides

$x^2 + 2x- 24 = 24 - 24$

$x^2 + 2x - 24 = 0$

Make two different x's

$x^2 + 2x - 24 = 0$

$x^2 + 6x - 4x - 24 = 0$

Make two different parenthesis

$x^2 + 6x - 4x - 24 = 0$

$(x + 6)(x - 4) = 0$

Step 2: Solve for x in both equations

$x + 6 = 0$

$x + 6 - 6 = 0- 6$

$x = -6$

$x - 4 = 0$

$x - 4 + 4 = 0 + 4$

$x = 4$

Answer: $x = -6, x = 4$

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3 years ago

What is the solution to the equation?

dem82 [27]

Answer:what equation

Step-by-step explanation:

8 0

4 years ago

Select the correct answer from each drop-down menu.

ahrayia [7]

Answer:

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Step-by-step explanation:

A cross section is the intersection of a solid and a plane.

7 0

4 years ago

Emma works in a department store selling

IceJOKER [234]

Answer:

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Step-by-step explanation:

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3 years ago

The arithmetic mean of three consecutive even integers is 20. Which equation could be used to find the integers? A) x(x + 2)(x +

nexus9112 [7]

Given:

The arithmetic mean of three consecutive even integers is 20.

To find:

The equation that can be used to find the integers.

Solution:

Let the three consecutive even integers are x, x+2 and x+4.

We know that,

$\tex{Mean}=\dfrac{\text{Sum of observations}}{\text{Number of observations}}$

The arithmetic mean of three consecutive even integers is:

$\tex{Mean}=\dfrac{x+(x+2)+(x+4)}{3}$

It is given that, mean = 20. So,

$\dfrac{x+(x+2)+(x+4)}{3}=20$

Therefore, the correct option is E.

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4 years ago