Solve the equation.
- 
= 
A. -26
B. 
C. -13
D. 13
Answer: D
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For the following equation, graph y = f1(x) and y = f2(x) on the same screen on your calculator. From the graphs, make a conjecture as to whether the equation is an identity. If so, prove your conjecture.
= 
What will be an ideal response?
Solve for the missing values. Round money to the nearest cent, rate to the nearest tenth of a percent, and time to the nearest day.Principal: $10,883Interest: 
Rate: 
Time: 338 daysMaturity value: $11,685
A. $11,083; 8.0% B. $2406; 7.7% C. $802; 7.8% D. $2406; 8.2%
Solve the problem.A circular hole is filled with concrete to make a footing for a load-bearing pier. The hole measures 15 inches across and requires 1.6 bags of concrete in order to fill it to ground level. What is the depth of the hole? Round your answer to the nearest inch. (One bag of concrete, when mixed with the appropriate amount of water, makes 1800 in.3 of material.)
A. 13 in. B. 20 in. C. 22 in. D. 16 in.
For those which are polynomial functions, find the degree, the leading term, and the leading coefficient.f(x) = 3 + 5x - 7x3
A. not a polynomial function B. Degree: 3, leading term: -7, leading coefficient: 3 C. Degree: 3, leading term: -7x3, leading coefficient: -7 D. Degree: 0, leading term: 3, leading coefficient: 3