Estimate the sum or difference by first rounding to the nearest ten.74
A. 140
B. 130
C. 100
D. 136
Answer: B
Mathematics
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A spectator watches a rowing race from the edge of a river bank. The lead boat is moving in a straight line that is 110 ft from the river bank. If the boat is moving at a constant speed of 10 ft/sec, how fast is the boat moving away from the spectator when it is 600 ft past her? ? Round the answer to the nearest hundredth, if necessary. ? __________ ft/sec
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the range of the given function.f(x) = -2x2 + 9x + 3
A. 
B. 
C. 
D. 
Mathematics
Evaluate the function.Given f(x) = -
, find f(4).
A. -4 B. 8 C. -8 D. 4
Mathematics
Graph the equation.y = x2 + 4
A. 
B. 
C. 
D. 
Mathematics