Arecent national survey found that high school students watched an average (mean) of 6.8 movies per month with a population standard deviation of 1.8. the distribution of number of movies watched per month follows the normal distribution. a random sample of 36 college students revealed that the mean number of movies watched last month was 6.2. at the 0.05 significance level, can we conclude that college students watch fewer movies a month than high school students?

answer: the two figures are congruent.

step-by-step explanation: they're congruent because figure efgh is reflected across the x and y axis but it was also rotated.

hope it !

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

21

jk it's 20

step-by-step explanation: