Graph the solution set of the system of inequalities.y ? 4x + 3y ? -x - 3

A.

B.

C.

D.


Answer: A

Mathematics

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Solve the problem.At one college, GPAs are normally distributed with a mean of 2.6 and a standard deviation of 0.6. What percentage of students at the college have a GPA between 2 and 3.2?

A. 47.5% B. 84% C. 95% D. 68%

Mathematics

Find the value of the determinant.

A. -5 B. -7 C. 5 D. -1

Mathematics

Multiply.(1.57)(-7.0)

A. -5.43 B. 8.57 C. 10.99 D. -8.57

Mathematics

The function f is one-to-one. Find its inverse.f(x) = x2 - 1, x ? 0

A.  f-1(x) =  + 1, x ? 0
B. f-1(x) = , x ? 1
C.  f-1(x) =  + 1, x < 0
D. f-1(x) = , x ? -1

Mathematics