494 students were surveyed. 58 had a cat. 185 had a dog. 20 had both a cat and a dog. what is the probability that a student had a cat or a dog

Witch statement best describes How to determine whether f (x) = 9-4x^2 is an odd function?

the measure of one angle of a right triangle is 38 degrees more than the measure of the smallest angle. find the measures of all three angles.

Mixed numbers from 6 to 7, with an interval of 1/5 in between each pair of mixed numbers

Given that z is a standard normal random variable, compute the following probabilities: a. P (z ≤ - 1) b. P (z >.95) c. P (z ≥ - 1.5) d. P (-.5 ≤ z ≤ 1.75) e. P (1 < z ≤ 3)

Jerry charges $15 for each lawn that he cuts. Depending homework and chores, he has time to cut at most 10 lawns a week. Jerry has determine his fixed cost to be $10 a week and that his profit for a week can be modeled by the function y = 15x - 10.

Which decim is greater than 2.234

Which partial products can be used to find the product shown below? 51 x 42 О А 2 and 2,000 о в. 10 and 2,400 o с. 12 and 2,040 о o р. 102 and 2,040

5. Andre is solving the equation 4 (x + 3) = 7. He says, "I can subtract from each side to get 4x = 1 and then divide by 4 to get x = " Kiran says, "I think you made a mistake." a. How can Kiran know for sure that Andre's solution is incorrect? b.

On three examinations, Dana received scores of 84, 89, and 78. What score does Dana need on the fourth examination to raise his average to 85?

You have a Spanish meeting every forth day and a math club meeting every tenth day. Today you have both meetings. In how many days will you have both meetings on the same day again?