According to a recent poll at a university, 73.773.7% of high school seniors in a certain region had a driver's license. a sociologist thinks this rate has declined. the sociologist surveys 600600 randomly selected high school seniors and finds that 430430 have a driver's license. a. pick the null hypothesis.

b. pick the alternative hypothesis.

c. in this context, what does the symbol p represent?

answer: what equations are there

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.