MATHEMATICS HIGH SCHOOL

What is the product?
2x(x – 4)
2x2 – 4
2x2 – 8
2x2 – 4x
2x2 – 8x

Answers

Answer 1
Answer: 2x(x - 4)
2x × x + 2x × -4
2x^2 + 2x × -4
2x^2 + -2x × 4
2x^2 - 8x

The answer is: 2x^2 - 8x.
Answer 2
Answer:

Answer:

2x^2-8x.

Step-by-step explanation:

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When 5 is added to 2 times a number the result is 45
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Which of the following represents "10 less than n"? 10 - n n - 10 -10n

Answers

The statement can be written in the mathematical form will be 10 - n. Then the correct option is A.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

It simply implies subtracting something from an entity, group, location, etc. Subtracting from a collection or a list of ways is known as subtraction.

The statement is given as "10 less than n".

The statement can be written in mathematical form and will be

⇒ 10 - n

The statement can be written in the mathematical form will be 10 - n.

Then the correct option is A.

More about the Algebra link is given below.

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10 less then 'n' is a way of saying take ten away from 'n'.

it represents subtraction

basically n - 10

What times 20% equals $70,000

Answers

just divide 70000 by .2 and you get 350000
you change the percentage in a number - 20% ÷ 100 = 0.2
∴ 70,000 ÷ 0.2 = the answer

On a map with a scale of 1in to 12 feet, the area of a restaurant is 60in squared. Han says that the actual area of the restaurant of 720ft squared. Do you agree or disagree? Explain your reasoning

Answers

Answer: Disagree. The actual area is 8,640\ ft^2 (See explanation)

Step-by-step explanation:

Let be "x" the actual area of the the restaurant.

You know that the scale of the map is 1 inches to 12 feet. This can be written as a fraction:

(1\ in)/(12\ ft)

Calculate the scale drawing area of the restaurant. This is:

((1\ in)/(12\ ft))^2=(1\ in^2)/(144\ ft^2)

Since the area of the restaurant is 60\ in^2 on the map, you can set up this proportion and then solve for "x" in order to find the actual area of the restaurant.

This is:

(144\ ft^2)/(1\ in^2)=(x)/(60\ in^2)\n\n(60\ in^2)((144\ ft^2)/(1\ in^2))=x\n\nx=8,640\ ft^2

Therefore, what Han says is incorrect.

Final answer:

The actual area of the restaurant is 8,640 square feet, not 720 square feet as claimed by Han.

Explanation:

To determine if Han's claim about the actual area of the restaurant is correct, we need to compare the scale of the map and the actual measurements.

The scale of the map is 1 inch to 12 feet. If the area of the restaurant on the map is 60 square inches, we can calculate the actual area using the scale.

The actual area of the restaurant can be calculated by multiplying the area on the map by the square of the scale factor. In this case, the scale factor is 12 feet per inch, so the actual area would be 60 square inches * (12 feet per inch)^2 = 8,640 square feet.

Therefore, Han's claim that the actual area of the restaurant is 720 square feet is incorrect. The correct actual area is 8,640 square feet.

Learn more about scale

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Find the value of each variable and show which property is used.

Answers

7y-2=5y+4
+2 +2
__________
7y= 5y + 6
-5y -5y
__________
2y= 6

Y=3

3x+2=23
3x =21
x= 7

7(3) -2= 5(3)+4
19=19
x=19

3(7)+2=23
23= 23
Y=23

Adding and subtracting property


A stem-and-leaf plot uses pictures or symbols to represent information.

True
False

Answers

It is false because stem and leaf diagrams show factors not pictures of symbols
False, pictures are used in picture graphs or pictographs

829 to the nearest hundred

Answers

Hi There!

829 to the nearest hundred?


Nearest 100th = 800
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Solve: 7c^(2)+38c=24 Note: Use a comma to separate multiple solutions. Er