MATHEMATICS HIGH SCHOOL

Simplifying rational expressions1. (c+8)(c-8)/(c-8)(c+3)
2. n^2+4n-12/n^2+2n-8
3. 42x^2y^3/28x^3y
4. m^2-3m-10/m-5

Answers

Answer 1
Answer: 1. ((c + 8)(c - 8))/((c - 8)(c + 3)),
    (c + 8)/(c + 3)

2. (n^(2) + 4n - 12)/(n^(2) + 2n - 8),
    (n^(2) + 6n - 2n - 12)/(n^(2) + 4n - 2n - 8),
    (n(n) + n(6) - 2(n) - 2(6))/(n(n) + n(4) - 2(n) - 2(4)),
    (n(n + 6) - 2(n + 6))/(n(n + 4) - 2(n + 4)),
    ((n - 2)(n + 6))/((n - 2)(n + 4)),
    (n + 6)/(n + 4)

3. (42x^(2)y^(3))/(28x^(3)y),
    (3y^(2))/(2x)

4. (m^(2) - 3m - 10)/(m - 5),
    (m^(2) - 5m + 2m - 10)/(m - 5),
    (m(m) - m(5) + 2(m) - 2(5))/(m - 5),
    (m(m - 5) + 2(m - 5))/(m - 5),
    ((m + 2)(m - 5))/(m - 5),
    m + 2

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A farm has chickens and cows. You ask the farmer how many chickens he has, and how many cows he has. The farmer tells you he has 28 healthy animals, and they have a total of 64 legs. How many of his animals are cows.

Answers

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Boyd charges a $3.50 fee for setting up and taking down the umbrellas. He also charges $2.50 for each hour of use. Suppose h stands for the number of hours you rent. How much will it cost to rent an umbrella for h hours

Answers

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This is because it will cost $2.50 for every hour you use, plus an additionally fee for set up

Can you tell me what 6+3.9 is

Answers

Answer:

9.9

Step-by-step explanation:
6 + 3.9 = 9.9


you add the two whole numbers together and get 9

then you need to add whatever is behind the decimal point which is 9

add them together and you get 9.9

I'm tryna find the sum ​

Answers

Answer:

9x + 4

Step-by-step explanation:

Combine like terms which are 5x and 4x and 6 and -2

What is the solution to the proportion? Round the answer to the nearest tenth if necessary. StartFraction 52 over x EndFraction = StartFraction 9.5 over 3.25 EndFraction x = 14.6 x = 17.8 x = 157.8 x = 169.0

Answers

The solution to the proportion would be x = 17.8 which is the correct option (B).

What is Ratio?

A ratio is defined as a relationship between two quantities, it is expressed as one divided by the other

What are Arithmetic operations?

Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operations is called the arithmetic operator.

/ Division operation: Divides left-hand operand by right-hand operand

For example 4/2 = 2

We have been the given proportion as:

⇒ 52 : x = 9.5 : 3.25

⇒ 52/x = 9.5/3.25

⇒ 52/x = 2.923

Cross multiplication, and we get

⇒ x = 52/2.923

Apply the division operation,

⇒ x = 17.8

Therefore, the solution to the proportion would be x = 17.8.

Learn more about the Ratio here:

brainly.com/question/1504221

#SPJ5

Answer: 17.8

Step-by-step explanation:

How do I solve this
2x2+ 2x2 -2+2x2=

Answers

Use BODMAS, this is the order in which you must
1. Brackets
2. Divide
3. Multiply
4. Add
5. Subtract
therefore 2x2+2x2-2+2x2=10
2x2+ 2x2 -2+2x2=
  4  +   4  - 2 + 4 = 10
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