Sorry, I'm just stupid when it comes to math.
1) Rationalize the denominator of expression
2)A baseball player has a batting average of 0.175. What is the probability that he has exactly 3 hits in his next 7 at bats?
The probability is ________
3)Evaluate the expression and write the result in the form a+bi
4)Solve the following inequality. Write the answer in interval notation.
5)NASA launches a rocket at seconds. Its height, in meters above sea-level, as a function of time is given by
Assuming that the rocket will splash down into the ocean, at what time does splashdown occur?
The rocket splashes down after _______seconds
How high above sea-level does the rocket get at its peak?
The rocket peaks at _________meters above sea-level.
6)The equation has two solutions A and B where A<B and A=________ and B=_________
If you don't want to show the work on how you got it, it's fine. I understand that it's a lot of problems.
Hello again, badandy328!
5) NASA launches a rocket.
Its height, in meters above sea-level, is given by:
At what time does splashdown occur?
How high above sea-level does the rocket get at its peak?
Splashdown occurs when
We have: .
Quadratic Formula: .
Splashdown occurs about after liftoff.
The maximum height occurs at the vertex of the parabola.
The vertex is at: . seconds
Then: .
The rocket peaks at about