Find the sum of the arithmetic series using a formula.-10 + (-9) + (-8) + ... + 19 + 20
A. 165
B. 155
C. 150
D. 145
Answer: B
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Solve the problem.The base of the closed cubelike surface is the unit square in the xy-plane. The four sides lie in the planes 
, x = 1, y = 0, and y = 1. The top is an arbitrary smooth surface whose identity is unknown. Let 
and suppose the outward flux through the side parallel to the yz-plane is 3 and through the side parallel to the xz-plane is -5. What is the outward flux through the top?
A. 2 B. -2 C. Not enough information to determine D. 0
For an election with candidates A, B and C, we have the following preference schedule:
Using the Borda count method, the winner of the election is
A. A. B. A, B and C tie. C. B. D. C. E. A and B tie.
Solve. Remember to insert units when writing your answer.There are two trees in Raul's garden. One tree is 23 ft 8 in. tall. The other tree is 19 ft 9 in. tall. How much taller is the taller tree?
A. 3 ft 11 in. B. 4 ft 11 in. C. 42 ft 11 in. D. 4 ft 1 in.
Bernie invested a sum of money 5 year(s) ago in a savings account, which has since paid interest at the rate of 6% / year compounded quarterly. His investment is now worth $22,927.66. How much did he originally invest? Round your answer to the nearest cent.
?
$__________
Fill in the blank(s) with the appropriate word(s).