tonimgreen17p6vqjq
22.02.2021 •
Mathematics
A ball is thrown straight up at an initial velocity of 54 feet per second. The height of the ball t seconds after it is thrown is given by the formula
h(t) = 54t − 12t2 . How many seconds after the ball is thrown will it return to the ground?
1) 9.2
2) 6
3) 4.5
4) 4
Solved
Show answers
More tips
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
Answers on questions: Mathematics
- M Mathematics What does 37.26 x 1,000 = ?...
- M Mathematics What are the measurements for DBC, ABD, and ABC please. Best answer gets brainliest...
- P Physics This is an image of a stream table modeling how water can change surface features of Earth. Which of the following processes is this stream table NOT modeling?A) Weathering B) Erosion...
- C Chemistry Which of the following substance is most likely basic...
- M Mathematics What is the x-coordinate of the solution to the following system of equations? 2x + y = −4 5x + 3y = −6 x = −6 x = 6 x = −8 x = 8 please show work, I really don t understand this....
- S Social Studies Help pls now What were positive effects of trust-busting? Check all that apply. It increased trade between the states. It increased competition within industries. It prevented workers...
Ответ:
53.62 m
Step-by-step explanation:
Length of arc = θ/360 × 2πr
r = XZ = 12 m
m<XYZ = 180 - 108 = 72° (angles on a straight line)
θ = 85° + 72° + 108° = 265°
Length of arc YWV = 256/360 × 2 × π × 12
= 53.6165146 ≈ 53.62 m (nearest hundredth)