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Kaylis [27]
3 years ago
6

A stone is dropped from a height of 490 meters. I how many seconds does it hit the ground?

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
3 0
Use this website: https://www.angio.net/personal/climb/speed.html
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HELPPPPPPPPPPP! PLEASE ILL GIVE 20 POINTS AND BRAINLIEST!
meriva

Explanation:

The perimeter of the track is the two circumferences of the semicircles (when combined, they form one circle, so we can just find the circumference of the circle) added to the lengths of the rectangle (

160

meters).

To find the circumference of the circle, we need to know the diameter.

Circumference of a circle:

d

π

or

2

r

π

, where

d

represents diameter and

r

represents radius

The diameter of the circle happens to be the same as the width of the rectangle. We know that the area of a rectangle is found by multiplying its length by its width. We know that the area is

14400

and that its length is

160

.

Width: area divided by length

14400

160

=

90

The diameter of the circle and the width of the rectangle is

90

meters.

Circumference:

90

⋅

π

=

90

π

→

If you are using an approximation such as 3.14 for

π

, multiply that by 90

Add

160

⋅

2

to the circumference since the lengths of the rectangle are also part of the perimeter.

160

⋅

2

=

320

90

π

+

320

i hope it helps you ok please mark ❣️ me as brainlist

8 0
1 year ago
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2 Times + 2 =4 table of a pair
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2 years ago
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1. For the function f(x) = 5, determine each of the following values.
Bess [88]

Answer:

f(4) = 5

Step-by-step explanation:

f(x) = 5.

Whatever value of x you input to the function , the function's value is always 5.

This is seen when you examine the graph of f(x) = 5. It is a straight horizontal line passing through y = 5. For every value of x along the line, f(x) = y = 5.

8 0
3 years ago
Write an equation of the line in slope intercept form through the points (0,-2) and (4,-2)
Ksivusya [100]

Answer:

y=2x-2

Step-by-step explanation:

Slope=M so to find slope its just rise over run so for this equation you would do 0+4=4 2-2=0 so that would be 2/0 or simplified to 2 the b=y intercept so if you have a 0 as an x in either points the y of that point will always be equal to b

3 0
3 years ago
Find the volume<br> I’ll mark brainliest
rodikova [14]

Answer: 25.13 m

Step-by-step explanation: pi x 2^2x 6= 25.13

3

This is an approximate number but it should be correct

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8 0
3 years ago
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