8. An astronaut, Is doing an experiment in a new planet He throws a rock from the top of a 20-foot-high hill at a speed of 12 feet per second. The rock's height above ground can be modeled by the equation h(t) =-4t2+8t + 20 a. How long does the rock take to reach the maximum height? b. What is the maximum height of the rock? How long does the rock take to reach the height of 8 feet? C.

Q: sorry can you write it out in pen or pencil please

A: Given that We have to find a ..Mean b..Standard deviation c...Tally Chart

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A: The given equatons are b) c)

Q: can you do the next part of the question please

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A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Please show EVERY STEP and JUSTIFY your answer.

A: Step 1:   Step 2: Step 3: Step 4:

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A: Since you have posted multiple questions, we answered the first question for you. If you want any…

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A: a) tan(3.7)=0.624733075225   Answer(a): 0.6247

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A:

Q: 14. For f(x) = x' – 6x² +9x , identify the critical points and inflection points A) Critical Points:…

A: Dear student, Since you have posted two questions, as per our policy we will answer first question.…

Q: can you write it on a paper or make it clear

A: Apologies for the inconvenience. If you do not see the math expressions properly, then please…