please help Of the four choices given which two when written as a system have a solution of (-4,5)

Which value is not a solution of 8x^3 – 1 = 0

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

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