What two numbers multiply to negative 18 and add to negative 3

Three times the sum of a number and seven is negative thirty-six. what is the number?

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

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)