Answer:
For first part, t= 0.18 sec or 3.4 sec.
For second part, t= 3.7 sec.
Step by step answer:
First part:
Set h(t) = 17and solve for tt.
-16t²+ 58t + 7= 17
-16t² + 58t - 10 = 0
Solve this quadratic equation for t. You should get 2 positive solutions. The lower value is the time to reach 17 on the way up, and the higher value is the time to reach 17 again, on the way down.
Second part:
Set h(t) = 0 and solve the resulting quadratic equation for t. You should get a negative solution (which you can discard), and a positive solution. The latter is your answer.
Answer:
x = 5.4
Step-by-step explanation:
since the figures are scaled factors of each other then they are similar.
the ratios of corresponding sides are therefore in proportion, that is
= ( cross- multiply )
4x = 21.6 ( divide both sides by 4 )
x = 5.4
Answer:
Yes
Step-by-step explanation:
A statistical question is one that can be asked and expected to receive answers that may vary - in other words, where the data from each participant is different.
Here, the question is "How many times did you ride the Ferris wheel today?” Obviously, it's almost impossible that each person asked rode the Ferris wheel the same number of times. Some people may say "once", others may say "three times", and still others might not have ridden it at all.
Given the differences in all these answers, we can say that this IS a statistical question.
Hope this helps!
He can make 25 cushions
20 divided by 4/5
Y=1/4x - 1 since the y intercept is at -1