Use your grapher to determine which of the graphs matches the given polar equation.r = 5 sec ?
A. 
B. 
C. 
D. 
Answer: B
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Provide an appropriate response.Find the average and round to the same place value as that used in the problem. Temperature averages for Caribou, Maine: 20°, 18°, 32°, 45°, 61°, 69°, 78°, 73°, 64°, 52°, 37°, 24°.
A. 48° B. 47.5° C. 47° D. 47.75°
The displacement d (in meters) of an object at time t (in seconds) is given. Describe the motion of the object. What is the maximum displacement from its resting position, the time required for one oscillation, and the frequency?d = -4 sin (5t)
A. simple harmonic; 4 m; 
sec; 
? oscillations/sec
B. simple harmonic; -4 m; 5 ? sec; 
oscillations/sec
C. simple harmonic; 4 m; 
? sec; 
oscillations/sec
D. simple harmonic; -4 m; 
? sec; 
oscillations/sec
Let 
?
Use a Riemann sum with four subintervals of equal length 
to approximate the area of R (under the graph of f on the interval [0, 2]). Choose the representative points to be the left end points of the subintervals.
?
__________ sq units
?
Repeat previous part with eight subintervals of equal length 
.
?
__________ sq units
?
Compare the approximations obtained in previous parts with the exact area (12 sq units). Do the approximations improve with larger n?
What will be an ideal response?
Factor the difference of two squares.144x2 - 25y2
A. (12x - 5y)2 B. (12x + 5y)2 C. (12x + 5y)(12x - 5y) D. prime