Which polynomial is factored completely?
121 x squared + 36 y squared
(4x + 4)(x + 1)
2 x (x squared minus 4)
3 x Superscript 4 Baseline minus 15 n cubed + 12 n squared

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

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?

Describe a situation where it would be beneficial to round decimals to the nearest dollar. explain why you would use rounding in that situation.