Answer the following questions using what you've learned from this unit. Write your responses in the space provided.
1. (15 points) Steve has an odd-shaped patch of dirt in his backyard that he
wants to make into a garden. He made a drawing of it and took some
measurements. They are shown below.
1211
38 ft
A. Steve can buy packets of sunflower seeds that will each cover a square 1
foot by 1 foot in size. Estimate how many packets of seeds he should buy to
cover his garden

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles. i'm desperate.

Nikolas calculated the volume of the prism. his work is shown below.

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.