Solve the problem.There are 7 essay questions on a test. Students must select 3 questions to write essays on. In how many ways can the 3 questions be chosen?
A. 42
B. 210
C. 33
D. 35
Answer: D
Mathematics
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Solve the equation for y.x = 3y + 7
A. y = 
x - 7
B. y = 
x - 
C. y = x - 
D. y = 3x - 7
Mathematics
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.ln 
A. 6 ln y + 6
B. 
ln 
+ 
C. 
ln y + 
D. 
Mathematics
Find the exact value of the expression.tan 345°
A. 
B. 2 + 
C. -2 - 
D. 
Mathematics
List the elements in the sample space of the experiment.A box contains 2 blue cards numbered 1 through 2, and 3 green cards numbered 1 through 3. List the sample space of picking a blue card followed by a green card.
A. {(1, 1), (1, 2), (1, 3), (2, 1), (2, 2), (2, 3)} B. {12} C. {7} D. {(1,1), (1,2), (2, 1), (2, 2), (3, 1), (3, 2)}
Mathematics