Provide an appropriate response.Multiply two fractions by 
the numerators and 
the denominators.
A. multiplying; canceling
B. adding; multiplying
C. multiplying; multiplying
D. multiplying; adding
Answer: C
Mathematics
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Find the value of the constant k so that the given function in a probability density function for a random variable over the specified interval. f(x) = 7e-6x over [0, k]
A. 
ln 
B. - 
ln 
C. 
ln 7
D. e-6x ln 7
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Graph the polar equation.r sin ? = 4
A. 
B. 
C. 
D. 
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Find an equation of the line that contains the given point and is perpendicular to the given line. If possible, write your equation in slope-intercept form.(4, 4), 
A. y = - 6x + 28
B. y = - 
x - 
C. y = - 6x - 28
D. y = 6x - 28
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Evaluate the determinant.
A. bc B. a - bc C. -bc D. a + bc
Mathematics