Find any relative maximum or minimum points of the given function.y = x4 - 2x2 - 9
A. Maxima at (1, -10), (-1, 8); minimum at (0, -9)
B. Minimum at (0, -9), maximum at (1, -10)
C. Minima at (1, -10), (-1, -10); maximum at (0, -9)
D. Minimum at (-1, -10), maximum at (1, -10)
Answer: C
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Find the area of the triangle. If necessary, round the answer to two decimal places.A = 23°, b = 9, 
A. 3.50 B. 3.53 C. 3.51 D. 3.52
Use the four-step procedure to solve the variation problem.If the force acting on an object stays the same, then the acceleration of the object varies inversely as its mass. If an object with a mass of 24 kilograms accelerates at a rate of 
per second per second by a force, find the rate of acceleration of an object with a mass of 
that is pulled by the same force.
A. 60 meters per second per second
B. 54 meters per second per second
C. 
meters per second per second
D. 50 meters per second per second
Evaluate the expression for the given replacement values. 21 - (y - z) for y = 6, z = 4
A. 19 B. 20 C. 31 D. 11
Solve.David recently switched to a long distance phone company which charges a monthly fee of $5.45 plus $0.06 per minute. Find a linear function that expresses the monthly bill B as a function of minutes used m.
A. B(m) = 5.51m B. B(m) = 0.06m + 5.45m C. B(m) = 0.06m + 5.45 D. B(m) = 5.45m + 0.06