Question

Algebra

Answer 1

A ball is thrown upward from the top of a building. The function below shows the height of the ball in relation to sea level, f(t), in feet, at different times, t, in seconds:

f(t) = −16t2 + 48t + 100

The average rate of change of f(t) from t = 3 seconds to t = 5 seconds is _____feet per second.

Answer for Blank 1:

Answer 2

@DaBest21

Answer 3

f(5)−f(3)5−3=−60−1002=−80 so its -80

Answer 4

Thank you, could you help me with a few more?

Answer 5

A basketball is thrown upwards. The height f(t), in feet, of the basketball at time t, in seconds, is given by the following function:

f(t) = −16t2 + 94t + 12

Which of the following is a reasonable domain of the graph of the function when the basketball falls from its maximum height to the ground?

2.9375 < t < 6
2 < t < 5
1 < t < 4
0 < t < 3

Answer 6

ok

Answer 7

@DaBest21

Answer 8

How do you know?

Answer 9

Could you kind of explain how you got it?

Answer 10

Alright

Answer 11

So it's a?

Answer 12

@CoinBank77 hes got it right?

Answer 13

do u need me

Answer 14

Not sure, he's said D,B,then A. Yeah I'd like your help @DaBest21

Answer 15

ok

Answer 16

i believe a because 1 through 2.9376 is where it begins to be a positive number and 5 is where it ends not 100% shure though

Answer 17

@Abhisar

Answer 18

That sounds right, and it's the same answer janu got before he deleted all his responses. Can you help me a few more questions?

Answer 19

one sec @Abhisar might come to check

Answer 20

Alright, I hope he's able to!

Answer 21

its a she not a he. i deleted my comment because i helped you with the first one and you gvae medal to some other person so ya laters

Answer 22

@DaBest21 Ready for another? Abhisar didn't respond

Answer 23

A quadratic equation is shown below:

x2 + 18x + 76 = 0

Which of the following is the first correct step to write the above equation in the form (x − p)2 = q, where p and q are integers?

Add 9 to both sides of the equation
Add 5 to both sides of the equation
Subtract 5 from both sides of the equation
Subtract 9 from both sides of the equation

Answer 24

@welshfella

Answer 25

@pooja195

Answer 26

b

Answer 27

Hmm, @DaBest21 any comments or is B right?

Answer 28

You there?

Answer 29

The graphs of f(x) and g(x) are shown below:

What are the solutions to the equation f(x) = g(x)?

x = −3, 4
x = −3.8, −0.4
x = −3.8, 3
x = 6.5, −6

Answer 30

@undeadknight26 @welshfella @Haseeb96 @mathstudent55 @pooja195