Find the equation of the line tangent to the graph of the function at the indicated point.f(x) = x2 - x at (-4, 20)
A. y = -9x - 12
B. y = -9x + 12
C. y = -9x + 16
D. y = -9x - 16
Answer: D
Mathematics
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Graph the polar equation.r = 6 - cos ?
A. 
B. 
C. 
D. 
Mathematics
Approximate the number rounded to three decimal places, and truncated to three decimal places.0.84615385
A. 0.845 0.847 B. 0.847 0.846 C. 0.846 0.847 D. 0.846 0.846
Mathematics
Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first five terms of the geometric sequence: 
, 
, 
, . . . .
A. 
B. 
C. 1023
D. 
Mathematics
Evaluate the expression.
-2/3
A. 
B. not a real number
C. 262,144
D. 16
Mathematics