Solve the problem. First use front end rounding. Then find the exact answer.There are 27,878,400 square feet in one square mile. How many square feet are there in 32 square miles?
A. Estimate: 840,000,000 square feet; exact: 892,108,800 square feet
B. Estimate: 900,000,000 square feet; exact: 892,096,000 square feet
C. Estimate: 900,000,000 square feet; exact: 892,108,800 square feet
D. Estimate: 840,000,000 square feet; exact: 892,096,000 square feet
Answer: C
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Determine the prime power representation of the number.217
A. 7 ? 29 B. 72 ? 31 C. 72 D. 7 ? 31
Write the partial fraction decomposition of the rational expression.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = 8x - 4
A. f-1(x) = 
B. Not one-to-one
C. f-1(x) = 
+ 4
D. f-1(x) = 
Find the direction the parabola opens, the coordinates of the vertex, the equation of the axis of symmetry and draw the graph.x = -3(y - 3)2 - 3 
A. 
opens left; vertex (-3, 3);
axis of symmetry y = 3
B. 
opens left; vertex (3, 3);
axis of symmetry y = 3
C. 
opens right; vertex (3, 3);
axis of symmetry y = 3
D. 
opens right; vertex (-3, 3);
axis of symmetry y = 3