Evaluate the radical expression if it is a real number. Use a calculator to approximate irrational numbers to the nearest hundredth. If the expression is not a real number, so state.
A. 625
B. 5
C. 
D. not a real number
Answer: B
Mathematics
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Solve the problem.Find the average height of the paraboloid 
above the annular region 
in the 
.
A. 725
B. 700
C. 475
D. 
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Approximate the area under the curve and above the x-axis using n rectangles. Let the height of each rectangle be given by the value of the function at the right side of the rectangle.f(x) = 2x2 + x + 3 from x = -2 to x = 1; n = 3
A. 17 B. 21 C. 25 D. 13
Mathematics
Find the first term and the common ratio of the geometric sequence.4, 
, 
, 
, . . .
A. a1 = 4, r = 
B. a1 = 4, r = 
C. a1 = 
, r = 
D. a1 = 
, r = 1
Mathematics
Match the point in polar coordinates with either A, B, C, or D on the graph.
A. A B. B C. C D. D
Mathematics