Write an equation for the ellipse.foci at (±9, 0); x-intercepts (±15, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: C
Mathematics
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cos 52°
A. 0.71 B. -0.16 C. -0.07 D. 0.62
Mathematics
Find the length of the curve.x = et - 10t, y = 4
et/2, 0 ? t ? 1
A. e + 9 B. 10 C. e + 10 D. e
Mathematics
Find a rational zero of the polynomial function and use it to find all the zeros of the function.f(x) = x3 - 8x2 + 14x - 4
A. {1, -1, 4}
B. {2, 3 + 
, 3 - 
}
C. {2, 6 + 
, 6 - 
}
D. {-2, 6 + 
, 6 - 
}
Mathematics
Find the cube root of the number. Approximate the answer to the nearest hundredth whenever appropriate.343
A. 18 B. -7 C. 7 D. 49
Mathematics