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2 years ago

5

May someone help me on this please please

1 answer:

Verdich [7]2 years ago

8 0

So what this question is asking is which stress rating occurred least often. so if you look at the frequency side of the table, you need to look for the lowest number, because that is how many students rated their stress at that level. the lowest number is 3, and if you look at the stress rating side, it is 2. so part a. would be 2, and part b. would be 3

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The volume of a cylinder is 4 pi x3 cubic units and its height is x units.

Rzqust [24]

Answer:

$2x$

Step-by-step explanation:

The volume of a cylinder, $V$ is given by the formula,

$V=\pi r^{2}h$

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Here, $V=4\pi x^{3}$ , $h=x$ . Plug in these values and solve for radius, $r$ .

This gives,

$V=\pi r^{2}h\\4\pi x^{3}=\pi r^{2}x\\r^{2}=\frac{4\pi x^{3}}{\pi x}\\r^{2}=4x^{2}\\$

Taking square root both sides, we get

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2 years ago

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2 years ago

A ramp is to be built beside the steps to the campus library. Find the angle of elevation of the 23-foot ramp, to the nearest

Usimov [2.4K]

Answer:

the angle of elevation is 12.56°

Step-by-step explanation:

the height of the ramp represents the opposite side and the length of the ramp the hypotenuse

we see that it has (angle, hypotenuse, opposite)

well to start we have to know the relationship between angles, legs and the hypotenuse

a: adjacent

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tan α = o/a

we choose the one with opposite and hypotenuse

sin α = o/h

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sin α = 5/23

α = sin^-1 ( 5/23)

α = 12.56°

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3 years ago