MATHEMATICS HIGH SCHOOL

Eight less than a number doubled is twenty more than the number. What is the number?

Answers

Answer 1
Answer: Let the number be a ....=>Number doubled : 2a ..=>Eight less than the no. Doubled : 2a - 8=>Eight less than the no. doubled is 20 more than the no. : 2a - 8 = 20 + a=>2a - 8 - 20 - a = 0=>2a -a - 20 -8 = 0=>a -28 = 0=>a = 28=>so the number is 28...Hope it helps!!!

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For a certain experiment, the available experimental units are 12 people-six females

Answers

Answer:

Ok

Step-by-step explanation:

6 people are males

6 people are females

What line forms when a plane and a cylinder intersect?

Answers

If the plane and the cylinder intersect perpendicular to each other, then the resulting line will form a circle. It the cylinder and the plane intersect horizontally to each other, the resulting line will form a rectangular prism.
Hope that helped =)

Which of the following is the parent function of all absolute value functions?f(x) = 3x
f(x) = |x|
f(x) = 2|x|
f(x)=x^2

Answers

Hello, 

The parent function of all absolute value functions is the f(x) = |x|.
I'll explain why. 
f(x) = 3x is a linear function.
f(x) = 2|x| is an absolute value function, but it has a vertical stretch by a factor of 2, and we want to find the parent function, it needs to be in the most simplest form. 
f(x) = x² is a quadratic function.

So, the final answer is choice 2, f(x) = |x|. 

Answer:

B

Step-by-step explanation:

I took the test

7-^3
Simplify this expression. Use 7 as the base.

Answers

Hopefully this photo helps

Last year Frank had a total income of $58,800. He sold a house and made a profit of $27,940. He also had monthly income of $80 from investments. Frank works 25 hours per week as an hourly employee.How much more an hour would Frank had to have earned last year in order to have a total income of $59,970?

Answers

The answer to your question is $0.90

Answer:

The abswer is D. $0.90

Step-by-step explanation:

I took the test

How many yards of a carpeting that is 26 inches wide will be needed to cover a floor thatis 12ft by 13ft?

Answers

How many yards of a carpeting that is 26 inches wide will be needed to cover a floor that
is 12ft by 13ft?

12ft = 144in
13ft = 156in

144in × 156in= 22464in²
(12ft) × (13ft) = (156ft²)

22464in² ÷ 26in = 864in needed
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