Find an equation for the ellipse described. Graph the equation.Foci at (-7, -4) and (-1, -4); length of major axis is 10
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: D
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Multiply.(3x2 - 3x - 4)(x2 + 2x + 4)
A. 3x4 + 3x3 + 6x2 - 20x - 16 B. 3x4 + 3x3 + 2x2 - 20x - 16 C. 3x4 + 6x3 + 6x2 - 20x - 16 D. 3x4 + 6x3 + 2x2 - 20x - 16
Write an expression for the general or nth term, an, for the geometric sequence.1, -3, 9, -27, . . .
A. an = 1 ? (-3)n B. an = 1 ? (-3)n-1 C. an = -1 ? 3n D. an = 1 ? 3n-1
Write the numeral in the following problem as a decimal numeral. By decimal numeral, we mean the system we use in everyday arithmetic. ? MCMXCVII
Fill in the blank(s) with the appropriate word(s).
Use Descartes's Rule of Signs to determine the possible number of positive and negative real zeros for the given function.f(x) = 6x4 - 5x3 + x2 - 3x + 10
A. 4 positive zeros, no negative zeros B. 4 or 2 positive zeros, no negative zeros C. 4, 2 or 0 positive zeros, no negative zeros D. 4, 2 or 0 positive zeros, 1 negative zeros