Answer: C.) 1.12 seconds
Step-by-step explanation:
Hi, to answer this question we have to substitute h=0 (when the rock hits the ground the height above it is 0) in the equation given:
h (t) = –16t2 + 20
Solving for t (time)
0= –16t2 + 20
16t2=20
t2=20/16
t=√1.25 =1.12 seconds (option C)
Feel free to ask for more if needed or if you did not understand something.
Answer:
I didn't understand your question so i need to do like this . choose the correct one
Correct Answer:
6 feet
Explanation:
6 feet = 12 x 6 = 72 inches
72 inches > 70 inches
Hence, 6 feet is greater than 70 inches.
I would appreciate it if you mark my answer as brainliest.
Answer:
i think 63%
Step-by-step explanation:
I did 5.25 minus 4.62 and got 0.63
then i multiplied 0.63 times 100 and got 63
correct me if im wrong