3 years ago

After how many seconds is the height 68 feet? When the equation is h=-16t2+64t+8

1 answer:

Rudiy273 years ago

5 0

<span>68=-16t2+64t+8
16t2-64t+60=0

4t2-16t+15=0
(2t-5)(2t-3)=0
t=5/2 or 3/2
The object is at 68 feet after 3/2 secs, and returns to 68 feet after another second..</span>

You might be interested in

Consider the numbers 4 and √5. Which operation(s) will result in an irrational number?

tekilochka [14]

Answer: D (both the sum and the product).

Step-by-step explanation:

Let's add: 4 + sqrt5 will still seem irrational.

Let's multiply: 4*sqrt5 = 4sqrt5, which is irrational.

5 0

1 year ago

(50 points) URGENT <br> Can someone help me with this problem?

34kurt

Answer:

bit.^{}ly/3a8Nt8n these are the answers

7 0

3 years ago

I ran 13 miles in 2 1/4 hours. What was my average speed? (It has to be done using proportions) I don't need the answer, I need

alina1380 [7]

2 1/4 hours=2.25 hours

ran 13 miles in 2.25 hours, so I just need to take 13 miles divided for 2.25 which equal 5 7/9. As a result, my average speed is 5 7/9 miles per hour. Hope it help!

6 0

3 years ago

Mr. Stewart wants to cut a board that is 34 inches long into four pieces that are the same length. How long will each board be a

Artist 52 [7]

Answer:

8.5

Step-by-step explanation:

divide 34 by 4 and it gives you 8.5

6 0

2 years ago

Feng has a toy car collection he keeps 324 of the toy cars on his wall which is 81% of his entire collection what is the total n

jeka94

Answer:

400

Step-by-step explanation:

YOU DON'T NEED ONE JUST TYPE THE ANSWER IN.

7 0

2 years ago