Use = or ? for ? to write a true sentence.
? 
A. ?
B. =
Answer: B
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Represent each of the following situations with a signed number.The team gave up 15 points.
A. -15 B. +15
Determine where the function is increasing and where it is decreasing.g(x) = 12x2 + 264x + 1308
A. increasing on (-?, -132) decreasing on (-132, ?) B. decreasing on (-?, -11) increasing on (-11, ?) C. decreasing on (-?, 11) increasing on (11, ?) D. increasing on (-?, -11) decreasing on (-11, ?)
Solve.A scientist is growing a colony of bacteria for an experiment. The number of bacteria in the colony can be modeled by the quadratic expression 17x2 - 882x + 14,640, where x is the number of days since the scientist began the experiment. Using this model, after how many days would we expect to find 67,000 bacteria in the colony? Round to the nearest whole day.
A. 97 days B. 45 days C. 87 days D. 35 days
Find the focus and the directrix of the parabola.y2 - 4x - 8y + 4 = 0
A. Focus: (-4, 4); directrix: x = -2 B. Focus: (-2, 4); directrix: x = -4 C. Focus: (-4, -3); directrix: y = -2 D. Focus: (1, -3); directrix: y = 7