Solve the logarithmic equation.log4(x + 9) + log4(x - 9) = 3
A. 
B. 
C. 
D. 145
Answer: B
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Solve the problem.A circle of radius r is inscribed in a square with sides 2r as shown in the figure. Express the shaded area in terms of r and ? as a completely factored polynomial.
A. 
(4 - r)
B. 
(2 + ?)(2 - ?)
C. 
(2-?)2
D. 
(4 - ?)
Factor the polynomial.15x4 + 19x2 + 6
A. (5x2 - 3)(3x2 - 2) B. (3x2 + 1)(5x2 + 6) C. (15x2 + 2)(x2 + 3) D. (3x2 + 2)(5x2 + 3)
Rotate the axes so that the new equation contains no xy-term. Discuss the new equation.24xy - 7y2 + 36 = 0
A. ? = 36.9° -
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ± )
B. ? = 36.9°
-
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ±3)
C. ? = 53.1° -
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ±2)
D. ? = 36.9° -
= 1
hyperbola
center at (0, 0)
transverse axis is the y'-axis
vertices at (0, ±2)
Select the correct graph for the following function using a graphing utility. Determine whether the limit exists or not.
?
?
?
A. ?
=7
?
B. ?
=6
C. ?
=6
D. ?
does not exist.
E. ?
?
does not exist.