The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).x = -3
A. r sin ? = -3
B. r cos ? = 3
C. r cos ? = -3
D. r sin ? = 3
Answer: C
You might also like to view...
Provide an appropriate response.If X is normally distributed with ? = 10 and ? = 2, find P(4 ? X ? 12).
Fill in the blank(s) with the appropriate word(s).
Find the location of the center, vertices, and foci for the hyperbola described by the equation.(y - 1)2 - 4(x - 3)2 = 4
A. Center: (3, 1); Vertices: (4, 0) and (4, 4); Foci: (4, 2 - 
) and (4, 2 + 
)
B. Center: (-3, -1); Vertices: (-3, -3) and (-3, 1); Foci: (-3, -1 - 
) and (-3, -1 + 
)
C. Center: (3, 1); Vertices: (-3, -2) and (3, 2); Foci: (3, - 
) and (3, 
)
D. Center: (3, 1); Vertices: (3, -1) and (3, 3); Foci: (3, 1 - 
) and (3, 1 + 
)
Solve the problem.There are 13 essay questions on a test. Students must select 3 questions to write essays on. In how many ways can the 3 questions be chosen?
A. 284 B. 286 C. 1716 D. 293
Simplify. Remember that we have assumed that radicands do not represent the square of a negative number.
A. 3x + 2
B. none of these
C. 
D. (3x + 2)2