Find the exact value of the expression.cot (-315°)
A. 
B. 
C. 1
D. -1
Answer: C
Mathematics
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Find all solutions of the equation x² -2x +5 = 0 and express them in the form a + bi.
What will be an ideal response?
Mathematics
A city crew must paint the median divider along each of the 48 streets in the neighborhood shown below (starting and ending at A). The foreman wants to organize the route in the most efficient possible way.
In an optimal trip through the neighborhood, the crew will travel a total of
A. 64 blocks. B. 66 blocks. C. 60 blocks. D. 62 blocks. E. none of these
Mathematics
Write the satement in symbols. Let x represent the unknown number.Nine times a number, decreased by 29.
A. 9(x + 29) B. 9x + 29 C. 9x - 29 D. 9(x - 29)
Mathematics
Solve the equation.
k = - 
A. k = 17 B. k = 5 C. k = 18 D. k = -3
Mathematics