Approximate the area under the curve and above the x-axis using n rectangles. Use the midpoints of the rectangles.f(x) = x2 + 2 from x = 1 to x = 4; n = 6
A. 26.9375
B. 28.625
C. 29
D. 26.75
Answer: A
Mathematics
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Solve.4x2 = 52
A. ± 
B. ± 13
C. 14
D. 26
Mathematics
Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just x on the left side.
x = -1; multiplied
A. 6
B. 
C. -1
D. - 
Mathematics
Write the expression as a logarithm of a single expression. Assume that variables represent positive numbers.log612 - log6x
A. log12
B. log6(12 - x)
C. log6
D. log6
Mathematics
Identify the fraction as proper or improper.
A. proper B. improper
Mathematics