Acard is chosen at random from a deck of 52 playing cards. what is the probability that a heart or spade is chosen?

a) 1/2
b) 1/4
c) 1/13
d) 1

Suppose that △ opq is isosceles with base qp . suppose also that m ∠ o = (5x + 43) ° and m ∠ q = (3x + 30) ° . find the degree measure of each angle in the triangle.

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?