2 years ago

Explain why it might be important to be able to work with and manipulate fractions when working in construction.

1 answer:

4 0

Answer:

Addition and Subtraction with different denominators. If the denominators are different then a common denominator needs to be found.

2 pages.

hope this helps

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4 years ago

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3 years ago

Read 2 more answers

Can someone please help me with this?

melamori03 [73]

Answer: $\Large\boxed{f(-9)=-189}$

Step-by-step explanation:

f(x) = -3x² - 6x

Requirements of the question

Find the value of f(-9)

Substitute values into the given function

f(x) = -3x² - 6x

f(9) = -3 (-9)² - 6 (-9)

Simplify the exponent

f(9) = -3 (81) - 6 (-9)

Simplify by multiplication

f(-9) = (-243) - (-54)

Simplify by subtraction

$\Large\boxed{f(-9)=-189}$

Hope this helps!! :)

Please let me know if you have any questions

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2 years ago