Determine the equation of the line described. Put the answer in the slope-intercept form, if possible.Through (-9, 2), perpendicular to 7x - 2y = -67

A. y = - x
B. y = - x -  
C. y = x +  
D. y = - x + 4


Answer: B

Mathematics

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A computer password is made up of five characters. Each character can be a capital letter (A through Z) or a digit (0 through 9).How many passwords do not start with the digit 0?

A. 364 B. 365 - 1 C. 355 D. 35 × 364  E. none of these

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Solve the problem.The manager of a coffee shop has one type of coffee that sells for $5 per pound and another type that sells for $12 per pound. The manager wishes to mix 60 pounds of the $12 coffee to get a mixture that will sell for $10 per pound. How many pounds of the $5 coffee should be used?

A. 42 lb B. 24 lb C. 12 lb D. 84 lb

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Solve the system by substitution.  x + 2y = -162x + 2y = -22

A. {(-6, -5)} B. ? C. {(6, -6)} D. {(-5, -6)}

Mathematics