Find the angle between the given vectors to the nearest tenth of a degree. u = <-5, -4>, v = <-4, -3>

-9.1°
1.8°
0.9°
11.8°

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

What is the value of the expression below? (81^2)^1/8

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)