Find the missing measurement in the figure.
a = 1.25 in. b = 1.25 in. c = 5.19 in.
A. z = 3.94 in.
B. z = 3.69 in.
C. z = 1.79 in.
D. z = 2.69 in.
Answer: D
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Solve the problem.Three trains - one eastbound, one westbound, and one northbound - leave a city at the same time. The speed of the northbound train is 10 miles per hour greater than the speed of the eastbound train. After 8 hours, the distance between the westbound train and the eastbound train is 560 miles. Twice the speed of the westbound train is 40 miles per hour more than the speed of the northbound train. Find the speeds of the three trains.
A. eastbound, 30 mph; westbound, 40 mph; northbound, 40 mph B. eastbound, 20 mph; westbound, 50 mph; northbound, 40 mph C. eastbound, 40 mph; westbound, 40 mph; northbound, 30 mph D. eastbound, 40 mph; westbound, 40 mph; northbound, 50 mph
Use a product-to-sum identity to rewrite the expression.sin 38° sin 50°
A. 0.5(cos(-12°) - cos(88°) ) B. 0.5(cos(88°) + cos(-12°) ) C. 0.5(sin(88°) + sin(-12°) ) D. 0.5(sin(-12°) - sin(88°) )
Evaluate as requested.Given that g(x) = 3x3, find g(6 + h).
A. 648 - 324h + 36h2 - 3h3 B. 216 + 108h + 54h2 + 4h3 C. 648 + 324h + 54h2 + 3h3 D. -648 + 324h - 9h2 + h3
Answer the question.How can the graph of y = 0.6
be obtained from the graph of 
A. Reflect it across the y-axis. Shrink it vertically by a factor of 0.6. B. Reflect it across the y-axis. Stretch it vertically by a factor of 6. C. Reflect it across the x-axis. Shrink it vertically by a factor of 0.6. D. Reflect it across the x-axis. Stretch it vertically by a factor of 6.