Find the product of the following real numbers.(-3)(-5)(4)
A. 60
B. 50
C. 160
D. -60
Answer: A
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Solve the problem.Suppose that R ={(x, y): 0 ? x ? 9, 0 ? y ? 8},R1 = {(x, y): 0 ? x ? 9, 0 ? y ? 7}, andR2 = {(x, y): 0 ? x ? 9, 7 ? y ? 8}. Suppose, in addition, that
dA = 5, 
dA = 9, and 
dA = 4.Use the properties of integrals to evaluate 
A. 45 B. 90 C. 0 D. 54
If PQ is a diameter of circle O and R is a point on the circle, then
(a) ?PRQ = 90°. (b) ?PRQ is a right triangle. (c) PQ = 180°. (d) All of these are correct. (e) None of these is correct.
Answer the question.5x + 3y = 197x + 8y = 48If your friend was going to solve this system of equations by first eliminating y, what general suggestions would you make so your friend could start on this in a systematic way?
What will be an ideal response?
Evaluate the root function at the given x-value. Round to the nearest hundredth when appropriate.f(x) = 
, x = -11
A. 1.82 B. 2.09 C. -2.09 D. Undefined