Find the variance of the probability density function to the nearest hundredth.f(x) =  - ; [3, 4]

A. 0.06
B. 0.10
C. 0.08
D. 0.05


Answer: C

Mathematics

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Solve the compound inequality.6x - 2 > -56 and x + 8 < 9

A. x < -9 or x > 1 B. No solution C. -9 < x < 1 D. -9 < x < 17

Mathematics

Solve the system by graphing. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.

A. {(3, 4)} B. {(-3, -4)} C. {(-1, -2)} D. {(-3, 4)}

Mathematics

Find the center and radius of the circle.(x - 4)2 + y2 = 49

A. (4, 0); 7 B. (-4, 0); 49 C. (0, -4); 7 D. (0, 4); 49

Mathematics

Simplify using the product rule.(2a2)(3a3)

A. 55 B. 56 C. 6a6 D. 6a5

Mathematics