Use the given information to find the exact value of the trigonometric function.cos ? = - 
, sin ? > 0
Find cos 
.
A. 
B. 
C. - 
D. - 
Answer: A
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Provide an appropriate response.Consider the linear equation in three variables 
. Find a pair of linear equations that, when considered together with the given equation, will form a system having infinitely many solutions.
What will be an ideal response?
Provide an appropriate response. Solve the given problem: The coffee beans from 16 trees are required to produce the 19 lb of coffee that each person in the United States drinks, on the average, each year. How many trees are required to produce 450 lb of coffee? (Hint: Any decimal part of a tree becomes a whole tree.)
A. 304 trees B. 535 trees C. 379 trees D. 136,800 trees
Evaluate the expression.
A. 0 B. 9 C. 4.5 D. -4.5
Let Z be the standard normal variable. Find the value of z if z satisfies 
. Round your answer to the nearest hundredth.
?
A. 
B. 
C. 
D. 
E. 