N is a perfect cube. Which of these is true about the units digit of N? (a) It has to be 3
(b) It has to be an odd digit
(c) It has to be one of 1, 4, 5, 6, 9 or 0
(d) It could be any digit.

How many solutions does the nonlinear system of equations graphed below have?

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

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)