Find the local extrema of the function, if they exist.f(x) = x2 - 6x + 18
A. Local maximum at (9, 3)
B. Local minimum at (3, 9)
C. Local maximum at (3, 9)
D. Local minimum at (9, 3)
Answer: B
Mathematics
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Provide an appropriate response. If force = pressure × area, how many pounds of force are produced by a pressure of 28 psi (pounds per square inch) on a piston whose surface area is 1.7 in2?
A. 16.5 lb B. 26.3 lb C. 29.7 lb D. 47.6 lb
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Simplify by combining like terms.7z - z
A. 6z B. 7z - 1 C. 6z2 D. -7z2
Mathematics
Divide.-0.4 ÷ 0.02
A. -20 B. -3.8 C. -2 D. -0.38
Mathematics
Solve the problem.Andy has 6 coins made up of quarters and half dollars, and their total value is $2.50. How many quarters does he have?
A. 4 quarters B. 7 quarters C. 2 quarters D. 6 quarters
Mathematics