Find an equation for the ellipse described.Center at (0, 0); focus at (-2, 0); vertex at (6, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
Mathematics
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (8cos3 9t)j + (8sin3 9t)k; 
? ? t ? 
?
A. 0 B. 12 C. 24 D. 4
Mathematics
Write the expression as a single trigonometric function.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Find the slope of the line that passes through the given two points. If the slope is undefined, state this.(-4, 9) and (6, -3)
A. - 
B. - 
C. - 
D. - 
Mathematics
Change the given quantity to the indicated unit.500 cm = 
m
A. 50 m B. 5 m C. 5000 m D. 50,000 m
Mathematics