Verify the identity.cos(? - ?) - cos(? + ?) = 2 sin ? sin ?
What will be an ideal response?
cos (? - ?) - cos (? + ?) = cos ? cos ? + sin ? sin ? - ( cos ? cos ? - sin ? sin ?) = 2 sin ? sin ?.
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An initial investment of $545.45 declines at a rate of 5 percent per year. What is the value of the investment after 3 years? Round your answer to the nearest cent. ? ?
A. $572.72 B. $81.82 C. $467.66 D. None of the above
Convert the degree measure to radians. Give your answer to 4 decimal places.10.45°
A. 0.0912 B. 0.1216 C. 0.0581 D. 0.1824
Suppose f and g are functions that are differentiable at ?x? = 5 and that ?f?(5) = 8, ?f? '(5) = -4, ?g?(5) = -1, and ?g? '(5) = 3. Find the value of ?h? '(5).
?
What will be an ideal response?
The following comparison line graph indicates the number of vehicles sold for a seven week period by two different salespeople. Use the graph to answer the question.
How many more vehicles did Pat sell in the seventh week than did Chris sell in the seventh week?
A. 6 vehicles B. 2 vehicles C. 4 vehicles D. 3 vehicles