Decide whether the expression is or is not an identity.cot2 
= 
A. Identity
B. Not an identity
Answer: A
Mathematics
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Find the second derivative of the function.r = 
(4 - ?)
A. 
= 
B. 
= - 
- 1
C. 
= - 
- 1
D. 
= 
- ?
Mathematics
Solve.Gina is buying a used car that has an advertised price of $4000. She is buying the car on credit and must make a down payment of $400 and 36 monthly payments of $114. What is her total payment?
A. $4204 B. $4504 C. $4104 D. $4494
Mathematics
Classify the following statement as true or false.If a quadrilateral is a parallelogram, it must also be a rectangle.
A. True B. False
Mathematics
The following table contains input-output values for a function. Is this function linear?
A. Yes B. No
Mathematics