Write the expression in condensed form.ln w - 3[2ln (w - 4) - ln (w + 4)]
A. ln 
B. ln 
C. ln 
D. ln 
Answer: D
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Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 - 16x + 15 = 0
A. x2 + (y - 8)2 = 49 center (0, 8), r = 7 B. (x - 8)2 + y2 = 49 center (-8, 0), r = 7 C. (x + 8)2 + y2 = 49 center (-8, 0), r = 7 D. (x - 8)2 + y2 = 49 center (8, 0), r = 7
Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given angle. Give exact answers with rational denominators.Find cos A when a = 
and c = 7.
A. 
B. 
C. 
D. 
Solve the triangle.? = 10°,
? = 100°,
a = 4
A. ? = 70°, b = 5.19, c = 0.74 B. ? = 70°, b = 4.19, c = 0.74 C. ? = 70°, b = 0.74, c = 4.19 D. ? = 70°, b = 1.74, c = 4.19
Solve using Cramer's rule.-3x - 5y + 8z = 14-9x + 2y + 3z = 9 6x - 8y + 3z = -6
A. (1, -3, -4) B. (1, 3, 4) C. (2, 1, 4) D. (3, 4, 3)