Transform the equation by rotating the axes through the given angle. Identify the curve.31x2 + 10
xy + 21y2 - 144 = 0, ? = 30°
A. 
+ 
= 1; ellipse
B. 
+ 
= 1; ellipse
C. y'2 = -4
x'; parabola
D. x'2 = -4
y'; parabola
Answer: A
Mathematics
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A recursion formula and the initial term(s) of a sequence are given. Write out the first five terms of the sequence.a1 = 1, a2 = 2, an+2 = an+1 + an
A. 1, 2, 3, 5, 8 B. 1, 2, 3, 6, 9 C. 1, 2, 3, 4, 5 D. 1, 1, 2, 3, 5
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Find the apportionment asked for.A small city has 50 police officers to be apportioned among 8 precincts based on the population of each precinct. The populations are given in the following table. 
Find the apportionment for the Seventh Precinct using Adams' method.
A. 4 B. 6 C. 7 D. 5
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Graph the function.r(x) = x3 - 3x + 3
A. 
B. 
C. 
D. 
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Is the following correspondence a function?DomainRange 
A. function B. not a function
Mathematics