Find the product.(-3)2
A. 8
B. -8
C. -9
D. 9
Answer: D
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Solve the problem below by setting up and solving a system of two linear equations in two variables.A 13% salt solution is to be mixed with a 18% salt solution to produce 10 gallons of a 16% salt solution. How many gallons of the 13% solution and how many gallons of the 18% solution will be needed?
A. 3 gallons of 13% and 5 gallons of 18% B. 8 gallons of 13% and 10 gallons of 18% C. 16 gallons of 13% and 18 gallons of 18% D. 4 gallons of 13% and 6 gallons of 18% E. 18 gallons of 13% and 20 gallons of 18%
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = x2i + y2j + zk; D: the solid cube cut by the coordinate planes and the planes x = 1, y = 1, and z = 1
A. 4 B. 1 C. 2 D. 3
Find the exact value of the expression.
A. - 
B. - 
C. -2
D. -
Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first five terms of the geometric sequence: 3, 12, 48, . . . .
A. 323 B. 63 C. 341 D. 1023