List a value of b that will cause 4x2 + bx + 25 = 0 to have one real solution

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

How can you find the magnitude of a vector, v = < x, y > , where the horizontal change is x and the vertical change is y?