Decide whether the expression is or is not an identity.
= sin x
A. Not an identity
B. Identity
Answer: A
Mathematics
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Add or subtract as indicated.
+ 
A. 
B. 
C. 
D. 
Mathematics
Find a formula for the inverse of the function described below.An organization determines that the cost per person of chartering a bus is given by the formula 
where x is the number of people in the group, and C(x) is in dollars.
A. C-1(x) = 
B. C-1(x) = 
C. C-1(x) = 
D. C-1(x) = 
Mathematics
Order the decimals from least to greatest.5.24, 4.69, 4.96, 5.42
A. 4.96, 4.69, 5.42, 5.24 B. 5.42, 5.24, 4.96, 4.69 C. 4.69, 5.24, 4.96, 5.42 D. 4.69, 4.96, 5.24, 5.42
Mathematics
Determine whether the sequence is geometric. If so, find the common ratio. –3, –6, –12, –24,...
a. –2
b. 
c. 2
d. not geometric
Mathematics