Use your graphing calculator to find the x-intercepts of the function to the nearest tenth.f(x) = x4 - 8x2 + 15
A. 2.2, 1.7
B. 5, -5, 3, -3
C. 2.2, -2.2, 1.7, -1.7
D. -1, 2.5, 2.5, -2.5
Answer: C
Mathematics
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Calculate the Taylor polynomial of second order that approximates f(x, y) near a.f(x, y) = 
, a = (4, 4)
A. 4 + 
(x - 4) + 
(y - 4) - 
(x - 4)2 - 
(x - 4)(y - 4) - 
(y - 4)2
B. 4 + 
(x - 4) + 
(y - 4) - 
(x - 4)2 - 
(x - 4)(y - 4) - 
(y - 4)2
C. 4 + 
(x - 4) + 
(y - 4) + 
(x - 4)2 + 
(x - 4)(y - 4) + 
(y - 4)2
D. 4 + 
(x - 4) + 
(y - 4) - 
(x - 4)2 + 
(x - 4)(y - 4) - 
(y - 4)2
Mathematics
Factor the trinomial.n2 + 4n - 60
A. (n - 60)(n + 1) B. (n - 10)(n - 6) C. (n - 10)(n + 6) D. (n + 10)(n - 6)
Mathematics
Simplify the expression, if possible.log5 
A. 
B. - 
C. - 
D. 
Mathematics
Identify the equation as a parabola, circle, ellipse, or hyperbola.4x2 = 16y2 + 64
A. Ellipse B. Circle C. Parabola D. Hyperbola
Mathematics