Non proportional I think. Wait for someone else to answer
When the firecracker hits the ground, H(t) = 0.0 = -16t^2 + 90t + 160 Using the quadratic formula,t = (-90 +- sqrt(90^2 - 4(-16)(160))) / 2(-16)t = -1.42 ort = 7.04
The negative time is extraneous. Therefore,t = 7.04 s.
Seven Seconds is your answer!
Well, for 4 I believe you must divide 2/4 by 100 to make it a decimal, then divide the decimal by the 5. :) Hopefully that is correct!
Answer:
-5
Step-by-step explanation:
I know that the value of the test statistic is z= -1.00 given the information I just read from your upload.
I want to say B. Fail to Reject Null Hypothesis
But I'm not a 100% sure it's actually B
