You need to use the cosine for this and this is how you do it.
Putting equation
0 = -16t² + 36t + 4
<span>0 = -8t² + 18t + 2 ← Complete the square to solve </span>
<span>-8(t² - 9t/2) = -2 </span>
<span>8(t² - 9t/4 + 81/64) = 2 + 81/8 </span>
<span>8(t - 9/8)² = 97/8 </span>
<span>(t - 9/8)² = 97/64 </span>
<span>t -</span><span> (t = 0) </span>
<span> (h = 0) at: </span>
<span>t = (9 + √97)/8 ≅ 2.356 seconds
hope it helps</span>
answer:
6 more hundreds
step-by-step explanation:
- six hundreds mean 600
- 600 + 400 would be 1000
- therefore, we would need 6 more hundreds
Answer:
20
Step-by-step explanation:
20
Answer:
70
Step-by-step explanation:
42/6=7. 42000/600=70. Add the zeroes!
