(x = 3)
Solve:
5х + 6 = 21

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find 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

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.