Answer:
The rocket ship reaches of height of 600 feet at t=8.415
Step-by-step explanation:
First, plug in the values you know. f(t) is equal to 600, the amount of feet at time t. The vertical velocity and initial heights should also be plugged in. You should end up with an equation that looks like:
600 = -16t^2 + 200t +50.
Simply use the quadratic formula to solve for t. You'll get two answers, one negative and one positive. Choose the positive one, as the negative answer is impossible to answer a real life time problem.
The answer is 8.415.
The right expression is -1-2/7-(-3) which then gives you -3/10
Answer: 0.09
Step-by-step explanation:
From the question, in a physical education class, there are 21 boys and 9 girls. Each day, the teacher randomly selects a team captain randomly.
The probability that the team captain will be a girl two days in a row assuming no student is absent will be:
Boys = 21
Girls = 9
Total = 21 + 9 = 30
P(pick a girl) = 9/30 = 3/10 = 0.3
P(pick a girl 2 days in a row) = (0.3)²
= 0.09
Answer:
5
Step-by-step explanation:
this will endure the bitextular number course and follow the index pattern once you do that follow the question to get 5
