Convert the angle in radians to degrees.
A. 3°
B. 60°
C. 60?°
D. 1°
Answer: B
Mathematics
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Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.ln 7 - 5 ln x
A. ln
12
B. ln
C. ln
D. 
Mathematics
Solve the problem.How many four-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, if repetitions of digits are allowed?
A. 9000 B. 256 C. 8999 D. 10,000
Mathematics
Find the exact circular function value.cos 
A. 
B. - 
C. - 
D. - 
Mathematics
Solve the following system by any appropriate method. If there is no real number solution, so state.xy = 90x + y = -19
A. (9, -10), (10, -9) B. (-9, -10), (-10, -9) C. (9, 10), (10, 9) D. (-9, 10), (-10, 9)
Mathematics