Use a calculator to find the function value to four decimal places.cos (-640°)
A. 0.9848
B. 0.6428
C. -0.3420
D. 0.1736
Answer: D
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Solve the problem.Refer to the figure, which shows the geographical distribution of voters in a state with 64 voters and eight districts. The voters are half Democrat and half Republican. Assume that district boundaries must follow the grid lines shown in the figure and that each district must be contiguous.
Draw boundaries expected to result in the election of five Democratic and three Republican representatives.
What will be an ideal response?
Use reduction formulas to evaluate the integral.
A. - 
sin 4x cos3 4x + 
+ 
sin 8x + C
B. - 
sin 4x cos3 4x + 
+ 
sin 8x + C
C. - 
sin 4x cos2 4x + 
+ 
sin 8x + C
D. - 
sin 4x cos3 4x + 
+ 
cos 8x + C
Use a calculator to find the value of y in degrees rounded to two decimal places.y = tan-1 (-3.556)
A. 105.71° B. -74.29° C. 285.71° D. -22.63°
Set up the percent proportion, and write "unknown" for the value that is not given. Recall that the percent proportion is 
= 
. Do not try to solve for any unknowns.What percent of 60 is 29?
A. 
= 
B. 
= 
C. 
= 
D. 
= 