Answer:
Leslie determined that the system of equations below has infinitely many solutions. Is she correct?
x=4y-4
2x-8y=-24
A.Yes, Leslie is correct.
B. No, the solution is (-8,-24)
C. No, the solution is (0,-16)
<u>D. No, the system of equations has no solution. </u>
Step-by-step explanation:
you have to solve they as a pair of simultaneous equations and their is no solutions
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Answer:
He said points
Step-by-step explanation:
I can get points for nothing
Using it's concept, it is found that the mean absolute deviation of 2.8 means that the heights differ from the mean by an average of 2.8 inches.
<h3>What is the mean absolute deviation of a data-set?</h3>
- The mean of a data-set is given by the sum of all observations divided by the number of observations.
- The mean absolute deviation of a data-set is the sum of the absolute value of the difference between each observation and the mean, divided by the number of observations.
- The mean absolute deviation represents the average by which the values differ from the mean.
In this problem, the mean is given by:
M = (65 + 58 + 64 + 61 + 67)/5 = 63.
Hence the mean absolute deviation is given by:
MAD = (|65-63| + |58-63| + |64-63| + |61-63| + |67-63|)/5 = 14/5 = 2.8.
The mean absolute deviation of 2.8 means that the heights differ from the mean by an average of 2.8 inches.
More can be learned about mean absolute deviation at brainly.com/question/3250070
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Answer:
90
Step-by-step explanation:
Answer:
2x^2y+9y^2-7x^2
Step-by-step explanation:
Just combine like terms.
