5. The table shows the volume of water in a tank after it has been filled to a certain
height
height of water volume of water
(inches) (cubic inches)
0
0
Which equation could represent the
volume of water in cubic inches, V, when
the height is h inches?
1
1.05
2
8.40
3.
28.35
3
CC BY 2019 by illustrative Mathematics
Algebra1 Unit 2 Lesson 12

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

Atorch and a battery cost 2.50 altogether. the torch costs 1.50 more than the battery. what fraction of the total price is the torch? give your answer in its simplest form.

What is the measure of angle a and angle c ?