The rectangular coordinates of a point are given. Express the point in polar coordinates with 
and 
(-2, 0)
A. (-2, 180°)
B. (2, 180°)
C. (2, 270°)
D. (2, 90°)
Answer: B
Mathematics
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Write as the sum and/or difference of logarithms. Express powers as factors. log9
A. log9y - log911 - 
log9x
B. log911 ? 
log9m ÷ log9y
C. log911 + 
log9x - log9y
D. log9(11
) - log9y
Mathematics
Use the dot product to find 
.v = 
A. 8
B. 6
C. 4
D. 5
Mathematics
Simplify the expression.Write log9(729x3 - 729) - log9(x - 1) as the sum of 3 and the logarithm of a second-degree polynomial.
A. log9(x2 + 1) + 3 B. log9(x2 + x + 1) + 3 C. log9(81x2 + 9x + 1) + 3 D. log9(x2 - x - 1) + 3
Mathematics
Simplify the expression. Write the result using positive exponents only.
A. 
B. 
C. 
D. 
Mathematics