Find all real solutions. Do not use a calculator.x4 - 6x2 + 8 = 0
A. {4, 2}
B. {4, ±
}
C. {±2, ±
}
D. {2, 
}
Answer: C
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Evaluate the iterated integral.
A. - 2145 B. - 975 C. - 195 D. - 2535
Use the parallelogram rule to find the magnitude of the resultant force for the two forces shown in the figure. Round to one decimal place.
A. 610.0 lb B. 298.5 lb C. 346.6 lb D. 536.7 lb
Estimate the fraction as 0, 
, or 1.
A. 0
B. 1
C. 
Write an equation to describe the situation.Mike is on vacation in Costa Rica. He has a budget of $910 for accommodation. He will stay as long as his budget allows. The more expensive hotel costs $66 per night and the budget hotel costs $43 per night. He plans to stay 7 more nights in the budget hotel than in the expensive hotel. Find the number of nights n that he will stay at the expensive hotel.
A. 43(n + 7) + 66 = 910n B. 43(n + 7) + 66n = 910 C. 43(n - 7) + 66n = 910 D. 43n + 66(n + 7) = 910