Find the exact value of the expression using the provided information.Find cos(s - t) given that cos s = - 
, with s in quadrant II, and 
with t in 
A. 
B. 
C. - 
D. - 
Answer: B
Mathematics
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Find the domain of the function.y = 
A. all real numbers except -2 B. (2, ?) C. (-?, 2) D. all real numbers except 2
Mathematics
Choose a strategy and solve.You need to purchase four tires for your car, and you found that the tire you need is $61.39 per tire installed including all taxes. You have $233 in your checking account. Do you have enough money in your checking account?
A. Yes B. No
Mathematics
Simplify the expression. Assume that all variables represent nonnegative numbers.2
+ 2
- 
A. 4
B. 3
C. 1
D. 5
Mathematics
Identify the probability statement as empirical or not.The probability of curing a certain type of cancer if detected early is 0.70.
A. Empirical B. Not empirical
Mathematics