Express the sum using summation notation.23 + 33 + 43 + ... + 83
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the mode(s) for the given sample data. 90, 45, 32, 45, 29, 90
A. 45 B. 55.2 C. 90, 45 D. 90
Mathematics
Find the area of the region specified in polar coordinates.the region enclosed by the curve r = 9 + cos ?
A. 82?
B. 
?
C. 41?
D. 
?
Mathematics
Solve.The pitch of a roof is 
. If the rise is 
feet, how far apart are the outer faces of the supporting walls?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.Each gallon of shingle stain covers 120 square feet. How many gallons are needed to cover 360 square feet?
A. 1 gal B. 2 gal C. 3 gal D. 4 gal
Mathematics