Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Answer: A
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Solve.Horsepower developed by an engine is directly proportional to its displacement. How many horsepower will be developed by an engine with a displacement of 320 cu in. if a 280-cu in. engine of the same kind develops 200 hp? (Round to the nearest whole number, if necessary.)
A. 224 hp B. 229 hp C. 240 hp D. 232 hp
Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set.2x + 2y + z = 152x - 3y - z = 43x + y + 4z = 28
A. {(3, 1, 5)} B. Cramer's rule does not apply since D = 0; ? C. {(5, 1, 3)} D. {(5, 3, 1)}
Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 5; zeros: 2, -3i, and 4 - i
A. f(x) = x5 - 10x4 - 42x3 -124 x2 + 297x + 306 B. f(x) = x5 - 10x4 + 42x3 -124 x2 + 297x - 306 C. f(x) = x5 - 10x4 + 26x3 -124 x2 + 72x + 306 D. f(x) = x5 - 10x4 + 26x3 -124 x2 - 72x - 306
Solve and check your solution(s). If the equation has no real solution, so state.
+ 
= 
A. 2 B. -1 C. 2, -1 D. no real solution