The equation has a solution r in the interval indicated. Approximate this solution correct to two decimal places.x4 - x3 - 7x2 + 5x + 10 = 0; -3 ? r ? -2
Fill in the blank(s) with the appropriate word(s).
-2.24
Mathematics
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Solve the problem.Each gallon of shingle stain covers 120 square feet. How many gallons are needed to cover 480 square feet?
A. 2 gallons B. 4 gallons C. 3 gallons D. 5 gallons
Mathematics
Determine whether the two matrices are inverses of each other by computing their product.
, 
A. No B. Yes
Mathematics
Solve the system.7x - y = 7-14x +2y = -14
A. {(x, 14x - 7)} B. {(x, 7x - 7)} C. ? D. {(x, 7 - 7x)}
Mathematics
Find the slope of the line and sketch its graph.3x + 5y = 19 
A. slope = - 
B. slope = 
C. slope = - 
D. slope = 
Mathematics