Simplify.22 + 27 ? 20
A. 614
B. 980
C. 69
D. 562
Answer: D
Mathematics
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Solve the problem.
Four boards are used as shelves in a bookcase. Each one is 
inch thick and the shelves areevenly spaced. If the height, h, of the bookcase is 40 inches, how much space is between each shelf?
A. 13
inches
B. 9
inches
C. 12
inches
D. 10 inches
Mathematics
Provide an appropriate response.Consider the curves corresponding to polar equations of the form 
where 
Explain how the graph changes as a changes. Identify any values of a for which the basic shape of the curve changes.
What will be an ideal response?
Mathematics
Determine whether matrix B is the inverse of matrix A by finding the product AB.A = 
, B = 
A. B ? A-1 B. B = A-1
Mathematics
Solve . Round the answer to three decimal places.
x = 13
A. -0.540 B. -3.250 C. -1.850 D. 1.850
Mathematics