If the sequence is geometric, find the common ratio r. If the sequence is not geometric, say so.1, -3, 9, -27, 81
A. -4
B. 3
C. -3
D. Not geometric
Answer: C
Mathematics
You might also like to view...
Tell whether the angle is acute, right, obtuse, straight, or reflex.
A. Straight B. Acute C. Right D. Zero
Mathematics
Solve the equation exactly in the complex number system.6x3 + 6x = 0
A. x = 0, x = ±1 B. x = ±i C. x = -6, x = ±i D. x = 0, x = ±i
Mathematics
Solve the formula for the specified variable.3x - 6y = 1 for y
A. y = 
x + 
B. y = 3x - 1
C. y = 2x + 
D. y = 
x - 
Mathematics
Find the focus and directrix of the parabola with the given equation.y2 = 28x
A. Focus: (7, 0), directrix: x = -7 B. Focus: (0, 7), directrix: y = -7 C. Focus: (-7, 0), directrix: x = 7 D. Focus: (0, -7), directrix: y = 7
Mathematics