Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. 
Answer: A
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Write the equation for the plane.The plane through the point P(-7, 7, 3) and parallel to the plane 
A. -8x - 6y + 3z = -23 B. 4y = 23 C. -8x - 6y + 3z = 23 D. -8x - 6y + 3z = -5
Solve the problem.On a holiday weekend, Nancy drove 2
hours in rush-hour traffic. When traffic eased up, she was able to increase her speed by 40 miles per hour and drove another 3
hours. If the entire trip was 284 miles, how fast did she drive in rush-hour traffic?
A. 25
mph
B. 25 mph
C. 26 mph
D. 24 mph
Find the slope of the line satisfying the given conditions.through (6, -7) and (4, 2)
A. 
B. - 
C. 
D. - 
Solve.A town has a population of 10,000 people and is increasing by 10% every year. What will the population be at the end of 6 years?
A. 16,000 people B. 7716 people C. 17,716 people D. 16,105 people