Perform the indicated operations.(2x - 2y)(4x - y)
A. 8x2 - 10xy + 2y
B. 6x2 - 10xy + 2y2
C. 6x2 - 7xy + 2y2
D. 8x2 - 10xy + 2y2
Answer: D
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Solve the problem.A town's average monthly temperature data is represented in the table below: Find a sinusoidal function of the form
that fits the data.
A. y = 27.35 sin + 56.95
B. y = 29.6 sin + 84.3
C. y = 84.3 sin + 29.6
D. y = 56.95 sin + 27.35
Solve the problem.The logistic growth model represents the population of a species introduced into a new territory after t years. When will the population be 50?
A. 1.53 years B. -1.39 years C. 10.66 years D. 13.58 years
Solve the problem.Two trains leave a train station at the same time. One travels east at 8 miles per hour. The other train travels west at 7 miles per hour. In how many hours will the two trains be 27 miles apart?
A. 0.9 hr B. 1.8 hr C. 3.6 hr D. 2.3 hr
Solve the problem.At the start of a chemistry experiment, Sarah measured the temperature of a liquid to be At the end of the experiment, it had risen
What was the liquid's temperature at the end of the experiment?
A. 50°C B. 16°C C. -50°C D. -16°C