85Answer:
Step-by-step explanation:
Answer:
Quantity zero just means that there is no amount of something. If I had zero dollars, it means I have no money at all.
<h2>
<em><u>YOUR</u></em><em><u> </u></em><em><u>ANSWER</u></em><em><u> </u></em><em><u>IS</u></em><em><u> </u></em><em><u>IN</u></em><em><u> </u></em><em><u>THE</u></em><em><u> </u></em><em><u>ATTACHMENT</u></em><em><u>. </u></em></h2>
<em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u> </u></em><em><u>you</u></em>
Answer: t = 6 s
Step-by-step explanation:
When Rose hit the water, the height of the jump is 0, so: h(t) = 0.
Resolving it, we have:
-16t² + 16t + 480 = 0
To simplify the second degree equation, divided it by 16:
-t² + t + 30 = 0
Now, solve the equation using Bhaskara:
Δ = 1² - 4. (-1) . 30
Δ = 1 + 120
Δ = 121
t = 
t₁ =
= - 5
t₂ =
= 6
Since time can be negative, it took t = 6s for Rose to hit the water.
Answer:c
Step-by-step explanation: