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MA_775_DIABLO [31]

2 years ago

13

How to simplify (n+2)!/n! I will mark brainliest and give a thanks!

1 answer:

Anastaziya [24]2 years ago

3 0

$\dfrac{(n+2)!}{n!}=\dfrac{(n+2)(n+1)n!}{n!}=(n+2)(n+1)=n^2+3n+2$

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Sara takes 1/6 of an hour to vacuum his moms car it takes 4 times that long to wash the car then it takes you to wax the car twi

Nataly [62]

<h2>Answer:</h2><h2>2 hours & 10 minutes </h2><h2>Step-by-step explanation:</h2><h2>1/6 of an hour is 10 minutes. She vacuumed for 10 minutes. It took 4 times as long to wash the car so 10 * 4 = 40. She washed the car for 40 minutes. It took her twice as long to wax the car as it did for her to wash it so 40 * 2 = 80. She waxed the car for 80 minutes. 10 + 40 + 80 = 130 minutes or 2 hours and 10 minutes. </h2>

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2 years ago

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2 years ago

What percent of 640 is 160?

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3 years ago

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There are 12 crayons in a box. How many boxes will be needed for 8 children if each child gets 7 crayons?

nata0808 [166]

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1 year ago

PLEASE HELP WITH GEOMETRY IM STUCK!?}

Ilya [14]

Answer:

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Step-by-step explanation:

Recall the trigonometric ratios

Sine = Opposite over Hypotenuse (SOH)

Cosine = Adjacent over Hypotenuse (CAH)

Tangent = Opposite over Adjacent (TOA)

Now lets look back at the question

We are given an angle and its adjacent side length (11) and we need to find the hypotenuse

The hypotenuse and adjacent sides corresponds with the trig function cosine so we will use cosine to solve for x

( remember that cosine = adjacent over hypotenuse )

$cos(37)=\frac{11}{x}$

step 1 multiply each side by x

$cos(37)*x=xcos(37)\\\frac{11}{x} *x=11$

now we have $xcos(37)=11$

step 2 divide each side by cos(37)

$\frac{xcos(37)}{cos(37)} =x\\\frac{11}{cos(37)} =13.77349\\$

we're left with x = 13.77439

Our last step would be to round to the nearest tenth

We would get that the answer is 13.8

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2 years ago

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