-a = -24 Please explain

2 answers:

7 0

-a = -24 can be simplified down even further. We can multiply or divide both sides by -1, which makes both sides even. Therefore, a would equal 24. Hope this helped!

allsm [11]3 years ago

5 0

This means a has a value of 24.

You might be interested in

A mixture of concrete is made up of sand and cement in the ratio of 5:3.How many cubic centimeters of sand is needed to make 160

bazaltina [42]

Answer: $100\ cm^3$

Step-by-step explanation:

Given

The ratio of mixture of sand and cement is 5:3

If the total volume of mixture is $160\ cm^3$

Suppose there is 5x and 3x cubic centimeter of sand and cement respectively i.e.

$\Rightarrow 5x+3x=160\\\Rightarrow 8x=160\\\Rightarrow x=20\ cm^3$

Sand $5x=5\times 20=100\ cm^3$

So, there is $100\ cm^3$ of sand in the mixture

3 0

3 years ago

Which of the following are exterior angles? Check all that apply.

Romashka [77]

[|] Answer [|]

6, 5, 4

[|] Explanation [|]

Exterior Angles:

Angles facing outward on a triangle

Angles 6, 5 and

4 are not inside the main triangle. They are wide open. Exterior simply means the outside of something. Angles 6, 5 and 4 are the outside angles to the main triangle.

_[|] Eclipsed [|] _

8 0

3 years ago

A social psychologist interested in cultural differences compared women of two ethnic groups on a Role Approval Index on which h

Levart [38]

Answer:

a. 5.26

Step-by-step explanation:

As, the standard deviation of the distribution of the difference between mean is 0.76 so the t score will be simply calculated by dividing the difference of means by standard deviation of the distribution of the difference between mean as hypothesized difference is zero.

t score=Xbar A- Xbar B/Sd of difference of means

t score=55-51/0.76

t score=4/0.76=5.26

3 0

3 years ago

Factor completely 2x3 + x2 - 18x – 9.

lys-0071 [83]

$2x^3+x^2-18x-9=x^2(2x+1)-9(2x+1)\\\\=(2x+1)(x^2-9)=(2x+1)(x^2-3^2)\\\\=(2x+1)(x-3)(x+3)$