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

Q: Find the area for all of them, please

A: As per company guidelines we are allowed to solve one question at a time so i am solving first one…

Q: di

A: we have  to solve differential equation

Q: help me with b and c too please

A: The given equatons are b) c)

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

A: In order to  estimate the parameters, we need to calculate the sample mean and sample variance of…

Q: 1. Let (x) = x2 + 2. Then (*+h)-f(x) A) 2x + h 2xh+ h2+4 C) B) 1 D) None of the above

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:

Q: Use a calculator to find the value of the trigonometric function to four decimal places. tan 3.7…

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

Q: Let X be the discrete random variable with the probability function f (x) = kx³ + 0.15 %3D for x =…

A:

Q: uld not understand how the values after one interation is calculated?

A: The k-means clustering

Q: can you please answer number 7 and show you did the work.

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…