Solve. Round results to the nearest thousandth.2x2 + 8x + 1 = 0
A. -0.129, -3.871
B. 3.984, 0.016
C. 3.871, 0.129
D. -0.016, -3.984
Answer: A
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Solve.The average of a student's three scores is 78. The first is 13 more than the second, and the sum of the first two is 9 more than twice the third. Find the student's score that is closest to the average score.
A. 75 B. 71 C. 77 D. 73
Find f[g(x)] and g[f(x)].f(x) = 
; g(x) = 4x - 1
A. f[g(x)] = 2
g[f(x)] = 4
- 1
B. f[g(x)] = 
g[f(x)] = 
C. f[g(x)] = 2
g[f(x)] = 4
- 1
D. f[g(x)] = 
g[f(x)] = 
Which method should be used to solve the system? Explain your answer, including a description of the first step.-3x2 + y2 =9-8x2 + 9y2 =25
What will be an ideal response?
Solve the problem.The amount of gas that a helicopter uses is directly proportional to the number of hours spent flying. The helicopter flies for 3 hours and uses 18 gallons of fuel. Find the number of gallons of fuel that the helicopter uses to fly for 4 hours.
A. 12 gal B. 30 gal C. 28 gal D. 24 gal