Jose predicted that he would sell 48 umbrellas. He actually sold 72 umbrellas. What are the values of a and b in the table below? Round to the nearest tenth if necessary. Percent Error Item Approximate value Exact value Error Absolute error Ratio Percent error Umbrellas 48 72 Negative 24 24 a b a = StartFraction 24 over 72 EndFraction; b = 33.3 percent a = StartFraction 24 over 48 EndFraction; b = 50 percent a = StartFraction 48 over 72 EndFraction; b = 67.7 percent a = StartFraction 24 over 24 EndFraction; b = 100 percent

Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.

∆abc is reflected across the x-axis and translated 2 units up to give the image ∆a'b'c' with coordinates a'(1, 1), b'(2, -1), c'(2, 1). what are the coordinates of the preimage ∆abc? a. a(-1, 1), b(-2, 3), c(-2, 1) b. a(1, 1), b(2, 3), c(2, 1) c. a(1, -3), b(2, -1), c(2, -3) d. a(1, -3), b(2, -5), c(2, -3)

Pls , the question is in the picture!