Beth created this design to cover a rip in her jacket. it took half an hour toplan the design and two and a quarter hours to cut and sew the frabric to the jacket. how much time did it take beth to save her favorite jacket?

Quick! what is the area of this trapezoid?

For the function, f(x) = -5x 2, find f(-4).

(a) (8%) compute the probability of an even integer among the 100 integers 1! , 2! , 3! , until 100! (here n! is n factorial or n*(n-1)*(n-2) *… 1) (b) (16%) compute the probability of an even integer among the 100 integers: 1, 1+2, 1+2+3, 1+2+3+4, …., 1+2+3+… + 99, and 1+2+3+… + 100