Eliminate the parameter to find a Cartesian equation for the ellipse.x = 2 + 6 cos t, y = 6 + 6 sin t
A. 
- 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
Mathematics
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Express the value of the inverse hyperbolic function in terms of natural logarithms.tanh-1 
A. 
ln 3
B. 
ln -3
C. 
ln 1
D. 
ln 33
Mathematics
Find f"(x) for the function.f(x) = 
A. - 
B. 
C. - 
D. - 
Mathematics
Simplify and write the answer using scientific notation. Use the correct number of significant digits.
A. 10 × 104 B. 5 × 1014 C. 10 × 1014 D. 5 × 104
Mathematics
Solve.The sum of the squares of the digits of a positive two-digit number is 13, and the units digit is 1 more than the tens digit. Find the number.
A. 23 B. 43 C. 34 D. 32
Mathematics