Find the exact value of the expression if ? = 30°. Do not use a calculator.f(?) = tan ?Find f(?).
A. 
B. 1
C. 
D. 
Answer: D
Mathematics
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There are nine quarters, seven dimes, and five nickels in a change purse. What is the probability of randomly picking a dime and then a quarter? ?
A.
?
B.
?
C.
?
D.
?
E.
?None of the above.
Mathematics
Multiply.(-3)(-4)(5)
A. 160 B. -60 C. 60 D. 50
Mathematics
Solve the equation graphically, numerically, or symbolically. If appropriate, round the solution to hundredths. ?r + 1.2? = 4
A. 2.8, 5.2 B. No solution C. -2.8 D. 2.8, -5.2
Mathematics
Find 
if lnxy=2ysinx.
What will be an ideal response?
Mathematics