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sergeinik [125]
3 years ago
13

If an object fell to the ground from the top of a 1,600-foot-tall building at an average speed of 160 feet per second, how long

did it take to fall?
Mathematics
2 answers:
Rufina [12.5K]3 years ago
5 0
The answer is 10 seconds.
anzhelika [568]3 years ago
3 0
Well 1,600/160= 10
so it will take 10 seconds to reach the ground not taking in any variables such as wind carrying it to the side and suspending in the air any longer so
=10 seconds
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Please help guys I need it
Inessa05 [86]

Answer:

a= 20

b= 169.7

c= 29.71

Step-by-step explanation:

The formula of a triangle is (h*b)/2

a= (5*8)/2

b= to find the height, you can use the pythagorean theorem 18^2 - 6^2 = square root of 288. Which is 12root 2 or 16.97. (16.97*20)/2

c= using the pythagorean theorem- 11^2 = 7^2 - c^2 = square root 73, or 6root 2, or 8.49. (8.49* 7)/2

4 0
3 years ago
what is the probability of hitting each target if it is assumed that a player’s throw will always hit the board? hint: the proba
solong [7]
Because the actual dimensions of the board and the target are missing, let us supply the missing values. 

Let:

radius of board = 6 inches
radius of target = 2 inches

Area of board = pi * r^2 = pi*6^2 = 36pi
Area of target = pi * r^2 = pi*2^2 = 4pi

Probability of hitting the target = 4pi / 36pi = 1/9

Therefore, there is a 1/9 chance of hitting the target on the board.
4 0
3 years ago
Carly opened 20 gifts on her birthday. Of these gifts, 4 were clothes, 13 were toys and 3 were books. According to these results
Elanso [62]

Answer:

65%

Step-by-step explanation:

Times 13 by 5   65  Number of toys

Times 4 by 5   20  Number of clothing

Times 3 by 5   15  Number of books

7 0
3 years ago
One fourth of the opposite of the difference of five and a number is less than 20
Igoryamba
\frac{1}{4}(-(5-x))
3 0
3 years ago
Determine the value of the ratio of 2:10
irakobra [83]
1:5
2/2=1
10/2=5
Therefore, 2:10=1:5
8 0
3 years ago
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