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3 years ago

Priya has 5 pencils, each x inches in length. When she lines up the pencils end to end, they measure 34.5 inches.

Mathematics

1 answer:

frez [133]3 years ago

8 0

The answer would be C.

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iogann1982 [59]

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3 years ago

A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B an

____ [38]

Answer: 70 meters.

Step-by-step explanation:

Observe the figure attached.

The distance between the walls is:

$DE=AD+AE$

Both triangles are right triangles. Therefore, you can calculate the distance between the walls as following:

- Calculate the distance AD:

$cos\alpha=\frac{adjacent}{hypotenuse}\\\\cos(60\°)=\frac{AD}{60}\\AD=30m$

- Calculate the distance AE:

$tan\beta =\frac{opposite}{adjacent}\\\\tan(45\°)=\frac{40}{AE}\\\\AE=\frac{40}{tan(45\°)}\\\\AE=40m$

Therefore the distance between the walls is:

$DE=30m+40m=70m$

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3 years ago

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Anuta_ua [19.1K]

The answer to this equation is

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2 years ago

Given the function below, find f (3/2). f(x) = 2x^2 - 7x

kenny6666 [7]

Answer:

3 has to be 3

Step-by-step explanation:

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2 years ago

What integer is equivalent to 9 3/2

Dovator [93]

The correct answer is: 27 .
________________________________
Explanation:
_________________________________
9^(3/2) = (√9)³ = 3³ = 3 * 3 * 3 = 27 .
____________________________________

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3 years ago

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