Find the exact or approximate circumference of the circle, as indicated.Find the approximate circumference. Use 
for ?.
A. 264 cm
B. 528 cm
C. 132 cm
D. 22,176 cm
Answer: B
Mathematics
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Solve using the elimination method. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this. 8x - 4y = 24-5x - 2y = 12
A. (0, -6) B. No solution C. (0, -5) D. (-1, -5)
Mathematics
Find the missing factor.x2 + 6x + 8 = (x + 4)( )
A. x2 + 2 B. x + 4 C. x + 2 D. x - 10
Mathematics
Simplify. Write the answer as a mixed number as needed.
× 2
+ 
A. 
B. 1
C. 2
D. 
Mathematics
Find all cube roots of the complex number. Leave answers in trigonometric form.-3
+ 3i
A. 
cis 50°, 
cis 170°, 
cis 290°
B. 
cis 70°, 
cis 190°, 
cis 310°
C. 
cis 70°, 
cis 190°, 
cis 310°
D. 
cis 50°, 
cis 170°, 
cis 270°
Mathematics