Rewrite the series using summation notation. Use 1 as the lower limit of summation.
+ 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Perform the following operation and write the result in lowest terms. 50 - 21
A. 28
B. 21
C. 28
D. 21
Mathematics
Write a differential formula that estimates the given change in volume or surface area.The change in the volume V = ?r2h of a right circular cylinder when the height changes from h0 to h0 + dh and the radius does not change
A. dV = ?r2h0 dh B. dV = ?r2 dh C. dV = 2?rh0 dh D. dV = ?r02 dr
Mathematics
Graph the polar equation.r sin ? = 4
A. 
B. 
C. 
D. 
Mathematics
Use a calculator to find the approximate value. Express your answer in degrees rounded to two decimal places.cos-1 (0.45)
A. 53.49° B. 24.23° C. 26.74° D. 63.26°
Mathematics