The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).x = -3
A. r cos ? = -3
B. r sin ? = -3
C. r cos ? = 3
D. r sin ? = 3
Answer: A
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Provide an appropriate response.A marathoner ran the 26.2 mile New York City Marathon in 2.5 hrs. Did the runner ever exceed a speed of 9 miles per hour?
What will be an ideal response?
Determine whether the integral converges or diverges.
A. diverges,
? 
for x ? 2, 
diverges
B. converges, 
? 
for x ? 2, 
converges
C. diverges,
? 
for x ? 2, 
diverges
D. converges, 
? 
for x ? 2, 
converges
The terminal side of ? in standard position contains the given point. Find the values of the six trigonometric functions of ?.(5, -12)
A. sin ? = 
cos ? = - 
tan ? = - 
csc ? = 
sec ? = - 
cot ? = - 
B. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
C. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
D. sin ? = - 
cos ? = 
tan ? = - 
csc ? = - 
sec ? = 
cot ? = - 
Solve using matrices.2x - y + 7z = 577x + 7z = 70 8y + z = 73
A. (1, 9, 8) B. (8, 9, 1) C. (-1, 8, 2) D. (1, 8, 9)