Find the exact value of the expression or state that it does not exist.cos[tan-1(-1)]
A. - 
B. 
C. 
D. - 
Answer: C
Mathematics
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Provide an appropriate response.If f(x) = 
+ x, then f(-2) =
A. 7.
B. -7.
C. 
-2.
D. 0.
E. 3.
Mathematics
Solve. Write the answer as a mixed number in simplest form.On a recent trip, Asha drove 246 miles on 16
gallons of gasoline. How many miles per gallon did she average?
A. 562
mpg
B. 15
mpg
C. 
mpg
D. 3971
mpg
Mathematics
Find the slope of the tangent line to the graph at the given point.f(x) = x2 + 11x - 15 at (1, -3)
A. 11 B. 13 C. -9 D. 26
Mathematics
Find the solution to the system of equations by substitution.
x + 
y = 32
x - 
y = 40
A. (-100, 27) B. (100, 27) C. (100, -27) D. (-100, -27)
Mathematics