∠A and \angle B∠B are complementary angles. If m\angle A=(x-15)^{\circ}∠A=(x−15) ∘
and m\angle B=(x+3)^{\circ}∠B=(x+3)
∘
, then find the measure of \angle B∠B.

14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.