3 years ago

Need help to Simplify n!/(n-1)!

1 answer:

3 0

A leaf hangs from a branch 12 feet in the air. It falls to the ground at a rate of 0.25 feet per second. Which graph could represent the leaf’s height in feet as a function of time, in seconds, after leaving the branch?

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Which of the following does not have a collapsed or indented side(s)? Select all that apply.

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Answer:

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Step-by-step explanation:

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Is △RWS ~ △QWT? yes no

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Write the equation of a line through the two points in (-2,8) and (5,-1)

natta225 [31]

Answer:

(-2, 8) and (5, -1)

slope: (y² - y¹) / (x² - x¹)

(-1 - 8) / (5 + 2) = -9/7

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8 = -9/7(-2) + b

8 = 18/7 + b

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3 years ago

What is the sum of a and b?

Juliette [100K]

Answer:

a=13, b=7

Step-by-step explanation:

You can use the exponent rule

$3x^{a-5}y^{9-b}=3x^{8}y^{2}$

so $x^{a-5}=x^{8}$ so

a-5=8

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$y^{9-b} =y^{2}$ so

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