The following show a change of scale made by an architect in one of his drawings. old: 1 in. =16 cm. new: 1in. =2cm which is the change in scale factor from the old scale to the new scale?

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

Factor the polynomial. b^2 + 4b + 4