Find the polar coordinates of the point(s) of intersection of the given curves for 0 ? ? < 2?.r = 8 cos ?, r = -1 + 6 cos ?
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Answer: B
Mathematics
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First add the given terms. Then start over and multiply them.6x2, 8x2
A. 14x4; 48x2 B. 14x2; 48x4 C. 14x2; 48x2 D. 14x4; 48x4
Mathematics
Write a formula for the nth term of the arithmetic sequence. Use the formula to find the 20th term of the sequence.-1, 1, 3, 5, 7, . . .
A. an = n + 2; a20 = 22 B. an = 3n - 2; a20 = 58 C. an = 2n - 3; a20 = 37 D. an = 2n + 3; a20 = 43
Mathematics
Rewrite the expression without using negative exponents. (Assume all variables represent nonzero real numbers.)-5-2
A. 25
B. - 
C. 
D. -25
Mathematics
Determine whether the functions f and g are inverses of each other.f(x) = 6x + 9; g(x) = 
A. Yes B. No
Mathematics