Write the trigonometric expression as an algebraic expression containing u and v.cos (tan-1 u + tan-1 v)
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use order of operations to simplify the expression.[-20.6 + (16.6 - 3.9)] - 2.1
A. -10 B. -5.8 C. -39 D. 31.2
Mathematics
Solve the problem.A gas law in chemistry says that 
= 
. If T = 200, t = 230, 
, P = 80, and v = 9, find the value of p. Round to the nearest thousandth when necessary.
A. 10.222 B. 0.444 C. 102.222 D. 266.667
Mathematics
For expression 
, replace z with 90°, and then simplify as much as possible.
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Find the probability for the experiment of tossing a six-sided die twice. ? The sum is at least 8. ?
A. 
B. 
C. 
D. 
E. 
Mathematics