Obtain the Cartesian equation of the curve by eliminating the parameter.x = 5 tan ?, y = 4 cot ?
A. y = 
cos x
B. 
= 20
C. xy = 20
D. y = 
sin x
Answer: C
Mathematics
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Determine whether a scalar or a vector is described.Sarah drives 17 miles directly toward her house.
A. Scalar B. Vector
Mathematics
Solve the problem. Assume that simple interest is being calculated in each case. Round your answer to the nearest cent.Annie's cafe borrows $6100 at 6% for 290 days. Find the total amount that must be repaid after 290 days. (Use a 365 day year.)
A. $9007.95 B. $6466.00 C. $6129.08 D. $6390.79
Mathematics
Evaluate the indicated function with the given information.Find tan 2x if cos x = - 
(in second quadrant).
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.3r + 6 = 30
A. r = 8 B. r = 25 C. r = 4 D. r = 21
Mathematics