Find the slope of the polar curve at the indicated point.r = 
, ? = 4?
A. 4?
B. -4?
C. 0
D. Undefined
Answer: B
Mathematics
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Use implicit differentiation to find dy/dx and d2y/dx2.y2 - x2 = 9
A. 
= - 
; 
= 
B. 
= 
; 
= 
C. 
= 
; 
= 
D. 
= 
; 
= 
Mathematics
Find the exact value of the expression.cos 20° sin 70° + sin 20° cos 70°
A. 0 B. 1 C. -1 D. 2
Mathematics
Use vertices and asymptotes to graph the hyperbola.
- 
= 1
A. 
B. 
C. 
D. 
Mathematics
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.e x + 3 = 7
A. -1.05 B. 2.30 C. -0.70 D. -0.99
Mathematics