Find area of figure. Round to the nearest hundredth if necessary.Find the area of a rectangle measuring 6 mi by 11 mi.

A. 66 mi2
B. 73 mi2
C. 18 mi2
D. 36 mi2


Answer: B

Mathematics

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Solve the problem.At a fixed temperature, the resistance R of a wire varies directly as the length l and inversely as the square of its diameter d. If the resistance is 0.52 ohm when the diameter is 1 mm and the length is 260 cm, what is the resistance when the diameter is 2 mm and the length is 990 cm?

A. 0.495 ohm B. 128.7 ohm C. 247.5 ohm D. 0.99 ohm

Mathematics

Divide. Write the answer in lowest terms and as a whole or mixed number where possible. รท 

A.
B.
C. 10
D. 3

Mathematics

Factor completely. If the polynomial is prime, state this.121k2 - 25m2

A. (11k + 5m)2 B. (11k + 5m)(11k - 5m)  C. (11k - 5m)2 D. (121k + m)(k - 25m) 

Mathematics

Use implicit differentiation to find dy/dx and d2y/dx2.xy - x + y = 2

A.  =  = 
B.  = -  = 
C.  =  = 
D.  = -  = 

Mathematics