Match the given equation with one of the graphs.
- 
= 1
A. 
B. 
C. 
D. 
Answer: C
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Solve.An elliptical trainer is an exercise machine in which your foot moves in an elliptical path. On a typical machine, the length of the stride is about 22 inches and the height is varies from 2 to 6 inches depending on the settings. Write the equation for the path your foot takes if the total length of the stride is 22 inches and the total height is 4 inches.22 inches4 inches 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Provide an appropriate response.Find the circumference of the circle whose radius is 2.46 cm. Round answer to nearest hundredth.
A. 7.73 cm B. 15.46 cm C. 19.01 cm D. 4.92 cm
Choose a reasonable method for solving the equation. Round your answers to three decimal places.
A) x=1.464, x= -1.464
B) x=1.464, x= -1.809
C) x=1.487, x= -1.464
D) x=1.809, x= -1.809
E) no real-number solution
Solve.How many different 4-letter radio-station call letters can be made if the first letter must be K or W, letters may be repeated, and the call letters cannot end in an O?
A. 35,152 B. 456,976 C. 16,900 D. 33,800