1. a factory makes light bulbs. out of 400 light bulbs, 18 were found to have defective filaments.
a. what is the experimental probability that the next light bulb manufactured will have a defective filament?
b. predict how many bulbs out of 6,000 will have defective filaments.

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.