In the freshmen class, 65% of the students take math, 45% take science, and 35% take both science and math. a)what percentage take at least one (science or math)course? b)what percentage take science only? c)what percentage take mathonly?

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236