The time it takes between when the rock was dropped and when it landed is 1.33 seconds.
<h3>What is the time it takes for the rock to land?</h3>
The time it takes the rock to land on the ground from where it is dropped can be determined by using the function given.
The height of the function when it hits the ground will be zero, so the function can be written as:
64 = 36t²
t² =1.778
t = 1.333 seconds
Learn more about calculating the time of a function here:
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Answer:
Step-by-step explanation:
(D+R) = 80:2 = 40
D = 40-R
(D+8) * R = 72X
Thay D=40-R
(40-R+8)*R = 72X
R=1.55, D=38.45
Answer:
The average change rate increases by a dollar for every 10 minutes you speak.
Step-by-step explanation:
If you do not speak at all you pay the standard price.
After that, If you add 10 minutes to your talk time, you add a dollar to your payment
hope it helps c:
Answer:
He traveled for 2.5 hrs at 54 mi/hr
He traveled for 3 hrs at 61 mi/hr
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check:
(1) +d+=+54t+
(1) +d+=+54%2A2.5+
(1) +d+=+135+ mi
