The roots of the equation x2 + 2x + 5 = 0 are (1) -3 and 1
(3) -1 + 2i and -1 -2i
(2) -1, only
(4) -1 + 4i and -1 – 4i

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Stephen thublin invests $1,000,000 in a 45-day certificate of deposit with 6.55% interest. what is the total interest income from the investment?

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