Solve the problem.A certain rectangle's length is 5 feet longer than its width. If the area of the rectangle is 84 square feet, find its dimensions.
A. 7 ft by 12 ft
B. 6 ft by 11 ft
C. 8 ft by 13 ft
D. 6 ft by 13 ft
Answer: A
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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = ln (6x + 6y)
A. Domain: all points in the xy-plane satisfying 6x + 6y > 0; range: real numbers z ? 0; level curves: lines 
B. Domain: all points in the xy-plane satisfying 6x + 6y > 0; range: all real numbers; level curves: lines 
C. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
D. Domain: all points in the xy-plane satisfying 6x + 6y ? 0; range: all real numbers; level curves: lines 
Find dy/dx without eliminating the parameter.x = 1/t6, y = -3 + ln t
A. - 
B. - 
C. - 
D. - 
Solve the problem.Mustaf flew his helicopter at a speed of 54 km/hr. Express this speed in miles per hour.
A. 3.4 mi/hr B. 86.4 mi/hr C. 864 mi/hr D. 33.8 mi/hr
Find the r th term in the binomial expansion.
?
?
Please enter your answer as a fraction.
What will be an ideal response?