Find the equation of the line tangent to the graph of the function at the indicated point.y = x3
at x = 1
A. y = 
x - 
B. y = 
x - 
C. y = 
x + 
D. y = 
x - 
Answer: D
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Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. 
Use Cramer's rule to solve the system. 4x - 2y=26 4x + 3y=51
A. {(5, 9)} B. {(9, -5)} C. {(9, 5)} D. {(-5, 9)}
The histogram shows the scores of each participant in a game from a total of 100 participants. 
How many participants scored more than 79?
A. 82 participants B. 57 participants C. 94 participants D. 19 participants
Solve the problem. Round your answer to the nearest tenth, if necessary.A garden has vegetables planted in a 35-ft by 20-ft area. The vegetables are surrounded by a 2-ft border of flowers. By what percent is the area for planting vegetables increased if the 2-ft border of flowers is removed?
A. 13% B. 33.7% C. 11.9% D. 34.8%