Find the circumference and area of a circle having the given diameter or radius. Use 3.14 for ?. Round your results to the nearest tenth.d = 15 cm
A. C ? 23.6 cm, A ? 94.2 cm2
B. C ? 47.1 cm, A ? 176.6 cm2
C. C ? 23.6 cm, A ? 706.5 cm2
D. C ? 47.1 cm, A ? 47.1 cm2
Answer: B
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Sketch the given surface.z = x2 + 4y2
What will be an ideal response?
Solve.6r + 10 = 52
A. 40 B. 36 C. 7 D. 1
Starting in the year 2000, the number of crimes committed each year in Middletown is predicted to grow according to a linear growth model. During the year 2000, Middletown recorded 2 crimes (P0 = 2). During the year 2001, Middletown recorded 6 crimes (P1 = 6).If PN denotes the predicted number of crimes during the year 2000 + N, then
A. PN = PN-1 + 2. B. PN = PN-1 - 4. C. PN = PN-1 + 4. D. PN = 4PN-1. E. none of these
Find the exact value under the given conditions.sin ? = 
, 
< ? < ?; cos ? = 
, 0 < ? < 
Find sin (? - ?).
A. - 
B. 
C. 
D. 