Solve the equation by completing the square.2x2 + 8x = -3
A. 
B. ?
C. 
D. 
Answer: A
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Solve the problem.A yard in the shape of a square measures 
on each side. A triangular area with a height of 
and a base of 
is dug up for a flower bed. How much yard area is left over?
A. 161.5 ft2 B. 342 ft2 C. 323 ft2 D. 380 ft2
Write a slope-intercept equation for a line with the given characteristics.Passes through (6, 2) and (-3, 7)
A. y = 
x + 
B. y = - 
x + 
C. y = 
x + 
D. y = - 
x + 
Use mathematical induction to prove the statement is true for all positive integers n.4 + 9 + 14 + . . . + (5n - 1) = 
(5n + 3)
What will be an ideal response?
Solve the problem.Suppose the cost per ton, y, to build an oil platform of x thousand tons is approximated by 
What is the cost per ton for x = 10? Round your answer to the nearest hundredth, if necessary.
A. $11,025.00 B. $478.72 C. $11,250.00 D. $50.00