Find the circumference or area of the circle, as requested. Give an exact answer (in terms of ?) and an approximation using 3.14 for ?. If necessary, round to two decimal places.Find the area.
A. 2.25? m2; 7.07 m2
B. ? m2; 18.84 m2
C. 3? m2; 42.39 m2
D. 9? m2; 14.13 m2
Answer: A
Mathematics
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For the given polar equation, write an equivalent rectangular equation. r2sin 2? = 40
A. y = 
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C. y = 40x2
D. y = 
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Draw the vector V that goes from the origin to the given point. Then write V in terms of the unit vectors i and j.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
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Suppose that a nonlinear system is composed of equations whose graphs are those described, and the number of points of intersection of the two graphs is as given. Make a sketch satisfying these conditions.A parabola and a circle; three points
What will be an ideal response?
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Find the distance on the number line between the pair of numbers.4.8, 8.8
A. 13.6 B. 2 C. 4 D. 6.8
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