There are 220 seniors at a certain school. Among all seniors, 45 took calculus, 55 took physics, and 10 took both. How many seniors took neither calculus nor physics? Please explain.

Evaluate the dot product of (3,-1) and (1,5)

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?