Answer:
5 seconds it will hit the water.
Step-by-step explanation:
y=-16t²+400
add -16t² to both sides
-16t²=-400
divide both sides by 16
t²=-25
t=√25
t=5
We use FOIL method to multiply this out. First termsOuter termsInner termsLast terms Product = (3m3 * 3m3) + (3m3 * -1/2y) + (-1/2y * 3m3) + (-1/2y * -1/2y) Product = 9m6 - (3/2)m3y - (3/2)m3y + (1/4)y2 <span>Product = 9m6 - 3m3y + (1/4)y<span>2</span></span>
Answer:
what's your question I can't understand
Answer:
1) 506.85 minutes
2) 17.33 minutes
3) 23.25 hours
Step-by-step explanation:
1) 16 minutes and 21 seconds

16 minutes and 21 seconds=16.35 minutes
Multiply by 31

2) 537 minutes 20 seconds

537 minutes 20 seconds=537.33 minutes
Divide by 31

3) 999 hours 45 minutes

999 hours 45 minutes=999.75 hours
