In a certain distribution, the mean is 50 with a standard deviation of 6. Use Chebyshev's theorem to tell the probability that a number lies in the following interval. Round your results to the nearest whole percent.Less than 20 or more than 80
A. At most 2%
B. At most 6%
C. At most 4%
D. At most 1%
Answer: C
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Solve by the method of elimination by addition or subtraction.-6x + 3y = 9-12x = 7 - 6y
A. x = 1, y = 5 B. x = 2, y = 4 C. x = 1, y = 4 D. Inconsistent
Solve the system by graphing. If there isn't a unique solution to the system, state the reason.x = -yy + x = 6
A. inconsistent system of equations B. (1, 1) C. (1, 5) D. dependent equations
Provide an appropriate response.Which of the following expressions has the greatest value?
A. 
B. 
C. 0.87
D. 
Solve the problem.Assuming all the necessary derivatives exist, show that if 
= 0 closed curves C to which Green's Theorem applies, then f satisfies the Laplace equation 
+ 
= 0 for all regions bounded by closed curves C to which Green's Theorem applies.
What will be an ideal response?