Solve the equation.log x + log (x - 1) = log 20
A. {5}
B. 
C. {-4}
D. {5, -4}
Answer: A
Mathematics
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Write one or more inequalities that describe the set of points.The exterior of the sphere of radius 2 centered at the point (4, -5, 5)
A. (x + 4)2 + (x - 5)2 + (x + 5)2 ? 4 B. (x + 4)2 + (x - 5)2 + (x + 5)2 < 4 C. (x - 4)2 + (x + 5)2 + (x - 5)2 > 4 D. (x - 4)2 + (x + 5)2 + (x - 5)2 < 4
Mathematics
Find the equation of the line described, and express your answer in the specified form.Perpendicular to the line y = 3x - 3; passes through the point (-1, 2); slope-intercept form
A. y = 3x + 
B. y = -3x + 
C. y = 
x + 
D. y = - 
x + 
Mathematics
Plot the point.(-2, -3)
A. 
B. 
C. 
D. 
Mathematics
Fill in the blank with one of the words or phrases listed below.
= purchase price + sales tax.
A. Commission B. Total price C. Sales tax D. Amount of discount
Mathematics