What is a golden ratio?
?
A. the number 
B. the number 
C. the number 
D. the number 
E. the number 
Answer: D
Mathematics
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Use either the binomial theorem or Pascal's Triangle to expand the binomial.(3y - x)4
A. 3y4 - 12y3x + 18y2x2 - 12yx3 + x4 B. 81y4x - 108y3x2 + 54y2x3 - 12yx4 C. 81y4 - 81y3x + 54y2x2 - 9yx3 + x4 D. 81y4 - 108y3x + 54y2x2 - 12yx3 + x4
Mathematics
Solve the problem.The sum of three numbers is -11. The first, minus the second, plus 4 times the third, is -4. The third, plus 3 times the first, plus the second, is -21. What are the numbers?
A. -5, -5, -1 B. 5, 5, 1 C. No solution D. -5, -5, -5
Mathematics
Solve.4t3 - 25t = 0
A. 0
B. ± 
C. - 
, 
, 0
D. 
Mathematics
Decide whether or not the equation defines y as a function of x.y = 
A. Yes B. No
Mathematics