Graph the ellipse and locate the foci.
+
= 1
A. foci at (4, 0) and (-4, 0)
B. foci at (, 0) and (-
, 0)
C. foci at (0, ) and (0, -
)
D. foci at (5, 0) and (-5, 0)
Answer: B
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A. 40° B. 36.832° C. 50° D. 0.766°
Evaluate the given logarithm.log832
A.
B.
C.
D.
Solve.David recently switched to a long distance phone company which charges a monthly fee of $5.45 plus $0.07 per minute. A linear function that expresses the monthly bill B as a function of minutes used m is Graph the linear function. Use a domain of 0 ? m ? 300.
A.
B.
C.
D.
Solve the problem.You throw a ball straight up from a rooftop. The ball misses the rooftop on its way down and eventually strikes the ground. A mathematical model can be used to describe the relationship for the ball's height above the ground, y, after x seconds. Consider the following data: Find the quadratic function y = ax2 +bx + c whose graph passes through the given points.
A. y = -12x2 + 90x + 16 B. y = -16x2 + 90x + 20 C. y = -16x2 + 80x + 30 D. y = -10x2 + 100x + 4