Solve the quadratic equation.7x2 + 10x + 2 = 0
A. 
B. 
C. 
D. 
Answer: C
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Determine which of the numbers below is a possible order of magnitude estimate of the quantity described.The total number of breaths taken in his lifetime by a man who lives to be 80.
A. Fifty million B. Ten billion C. Three hundred million D. Three billion
The CEO of a tire company has kept records for the profit P when n tires are produced. The rate of change 
is the marginal profit. The graph of marginal profit is shown. If the current rate of production is 180 tires, what effect on profit will an increase in production have?
?
??
A. Profits will be increased. B. Profits will remain the same. C. Profits will be reduced. D. None of the above
Write the number in trigonometric form. Let 0° ? ? < 360°.5 + 5i
A. 5
(cos 45° + i sin 45°)
B. 5
(cos 225° + i sin 225°)
C. 5
(cos 135° + i sin 135°)
D. 5
(cos 315° + i sin 315°)
Simplify the expression.
?
?
Write the answer without using exponents.
?
A. -12 B. -1 C. 1 D. 12