Which of the following questions describes the equation 4n = -24? What number, when multiplied by -24, equals 4?
What number, when divided by -24, equals 4?
What number, when multiplied by 4, equals -24?
What number, when divided by 4, equals -24?

What is the length of the unknown leg in the right triangle ?

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4