Perform the indicated operations.Estimate by rounding to the nearest thousand, then find the actual sum.
A. Estimate: 9000
Actual: 8809
B. Estimate: 8200
Actual: 8179
C. Estimate: 8000
Actual: 8179
D. Estimate: 8000
Actual: 8170
Answer: C
Mathematics
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Factor completely.x2 + 30x + 225
A. (x + 15)(x - 15) B. (x + 15)2 C. (x + 225)(x + 1) D. (x - 15)2
Mathematics
Find the square of the radical expression.
A. 49
B. 
C. 14
D. 7
Mathematics
Solve the problem.With the current, you can row 33 miles in 4 hours. Against the same current, you can row only 
of this distance in 5 hours. Find your average rowing velocity in still water.
A. 6.7 mph B. 6.3 mph C. 5.9 mph D. 7.3 mph
Mathematics
Find an equation for the line tangent to the graph of the given function at the indicated point.f(x) = x - x2 at (3, -6)
A. y = 7x - 9 B. y = 7x + 9 C. y = -5x + 9 D. y = 5x + 9
Mathematics