D Question 7
1 pts
SAT Mathematics scores are normally distributed with a mean of 500 and a standard
deviation of 100.
What percent of students who took the test have a mathematics score above 390?
86.43%
O 27.15%
13.57%
46.15%
RI
a

Find the zeros of each function. f(x) = x^2 + 5x - 6

Let x = a + bi and y = c + di and z = f + gi. which statements are true?

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −