Change the polar coordinates (r, ?) to rectangular coordinates (x, y).(4, 270°)
A. (-4, 0)
B. (0, -4)
C. (0, 4)
D. (4, 0)
Answer: B
Mathematics
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Provide an appropriate response. A boat traveled 36 miles down river, with the current of the water, in 2.25 hours. On the return trip, against the current, the trip took 3 hours. What was the rate of the boat in calm water?
A. 16 mph B. 14 mph C. 2 mph D. 12 mph
Mathematics
Make a stem and leaf plot of the data.The following data show the number of laps runby each participant in a marathon.46 65 55 43 51 4857 30 43 49 32 56
A. 
B. 
Mathematics
Simplify the exponential expression.(4x7)-2
A. 
B. 16x14
C. 
D. 
Mathematics
Indicate whether the expression is a polynomial or not a polynomial.-10y5 - 2y4 + 3
A. Not a polynomial B. Polynomial
Mathematics