Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cot 
A. 2.21
B. 127.53
C. 127.66
D. 2.08
Answer: D
Mathematics
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Find numbers a and b, or k, so that f is continuous at every point.
A. a = 1, b = 20 B. a = -1, b = 20 C. a = -1, b = -20 D. Impossible
Mathematics
Find.
?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the x-intercepts (if any) for the graph of the quadratic function.f(x) = 2x2 - 6x - 20
A. (2, 0) and (-5, 0) B. (-2, 0) and (-5, 0) C. (-2, 0) and (5, 0) D. (2, 0) and (5, 0)
Mathematics
Simplify.
+ 
A. 
x2 + 
x + 
B. - 
x6 + 
C. - 
x2 + 
x + 
D. - 
x4 + 
x2 + 
Mathematics