Suppose a triangle has two sides of length 3 and 4 and that the angle between these two sides is 60°. What is the length of the third side of the
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?

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52