Evaluate the polynomial or polynomial function for the given value of the variable.2x2 + 5x - 7 for x = -2
A. -19
B. -21
C. -13
D. -9
Answer: D
Mathematics
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Evaluate the integral using the given substitution.
, u = 9 - s4
A. -4s3
+ C
B. 
C. -4
+ C
D. 
+ C
Mathematics
Write the exponential equation as an equation involving a common logarithm or a natural logarithm.105 = 100,000
A. log 
= 5
B. log5
= 100,000
C. log 
= 100,000
D. log5
= 10
Mathematics
Use an identity to write the expression as a single trigonometric function or as a single number.
A. cos 37° B. tan 37° C. cot 37° D. sin 37°
Mathematics
Find a and k and then evaluate the function. Round your answer to three decimal places when necessary.f(x) = 20 + a(4kx) with f(0) = 180 and f(2) = 30. Find f(1).
A. a = 160, k = -1, f(1) = 60 B. a = 40, k = -1, f(1) = 60 C. a = -160, k = 1, f(1) = 60 D. a = 160, k = 1, f(1) = 30
Mathematics