Three times the sum of a number and seven is greater than five times the number less thirteen.
2 answers:
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Answer:
- 1/2 of a second
Step-by-step explanation:
<u>Given function:</u>
- h(t) = -16t^2 +12t +8
<u>Finding the value of t when h(t) = 10 feet:</u>
- 10 = -16t^2 +12t +8
- -16t^2 +12t - 2 = 0
- 8t^2 - 6t + 1 = 0
- t = (6 ± √6²-8*4)/16 = (6 ± √4)/16 = (6 ± 2)/16
- t = 1/2
- t = 1/4
There are two solutions. 1/2 of a second would be the answer as the ball should go up and then down to go through the hoop.
