Write the number in scientific notation.0.00207
A. 2.07 × 10-4
B. -2.07 × 103
C. 2.07 × 10-3
D. 2.07 × 10-2
Answer: C
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Find the angles of the trignometric values in degrees. ? represents the unknown angle measure. cos ? = 0.759
A. 41° B. 69.0° C. 41.0° D. 69°
A delivery truck must deliver packages to 5 different store locations (A, B, C, D, and E). The trip must start and end at D. The graph below shows the distances (in miles) between locations. We want to minimize the total distance traveled.
The repetitive nearest-neighbor tour starting with vertex D is given by:
A. D, C, A, B, E, D. B. D, B, E, C, A, D. C. D, A, B, E, C, D. D. D, E, A, B, C, D. E. none of these
Solve the problem.The area of a triangle is given byA = 
ab sin C,where a and b are the lengths of two of the sides and C is the included angle. If 
and C is an acute angle, what must C be? Give your answer in degrees to the nearest hundredth.
A. 53.66° B. 26.83° C. 126.34° D. No such triangle exists.
Solve the problem. The following data shows the number of housing starts in various years in one beachside community. 
Let f(t) be the number of housing starts at t years since 2009. Use a graphing calculator to draw a scatterplot to describe the data. Using the same viewing window, draw the graph of the quadratic model 
. Use the model to predict when the number of housing starts will be 167.
What will be an ideal response?