Find the circle's circumference or area, as requested. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.Find the area of the circle.
A. 18.8 ft2
B. 28.3 ft2
C. 9.4 ft2
D. 7.1 ft2
Answer: D
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Use the graph of the function f(x) to determine which values of x satisfy the the given equation.f(x) = -4
A. x = -2 and x = 2 B. x = 1 C. x = 1 and x = -1 D. x = -1
Provide an appropriate response.Which of the following inequalities satisfies the following description: the region inside an ellipse centered at the origin, with x-intercepts at (-8, 0) and (8, 0), and y-intercepts at (0, -4) and (0, 4)?
A. 
- 
< 1
B. 
+ 
> 1
C. 
+ 
< 1
D. 
+ 
< 1
In the problem, t is a real number and P = (x, y) is the point on the unit circle that corresponds to t. Find the exact value of the indicated trigonometric function of t.(- 
, 
)Find cos t.
A. - 
B. - 
C. - 
D. 
Find the requested partial derivative.f(x, y) = 
; fx(2, -5)
A. - 
B. 
C. - 
D. 