Department stores are about to release a new makeup line, and a promotional kit will be sold for $42.75. The cost to produce the kits can be determined by the cost function, where x is the number of kits to be produced and sold: C(x) = 28.25x + 8,250. Type the correct answer in the box. To the nearest whole number, the company must sell makeup kits before it starts to earn a profit.

Which of the following is the true for f(x) = 5cos

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)