For the given rectangular equation, write an equivalent polar equation.xy = 1
A. 2r sin ? cos ? = 1
B. r sin 2? = 2
C. 2r2sin ? cos ? = 1
D. r2sin 2? = 2
Answer: D
Mathematics
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Provide an appropriate response.To encourage conservation, a gas company charges two rates. You pay $0.53 per therm for 0-70 therms and $0.74 for each therm over 70. Write a compound fraction to represent the monthly cost of t therms of water.
What will be an ideal response?
Mathematics
Multiply or divide as indicated.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Use "intersect" on a graphing calculator to solve the system. Round the coordinates of the solution to the second decimal place. If the system is inconsistent or dependent, say so.y = -3.43x - 7.19y = 2.89x - 1.05
A. (-3.86, -0.97) B. (-3.86, 0.97) C. (-0.97, 3.86) D. (-0.97, -3.86)
Mathematics
Graph the equation by plotting points.y = 
A. 
B. 
C. 
D. 
Mathematics