What is the result of adding these two equations?
1 answer:
Answer:
-2x-7y=-4
Step-by-step explanation:
We want to add the two expressions
First we add the Left Hand Sides and do the same to the Right Hand Sides. This gives us:
(5x-9y)+(-7x+2y)= 1 +( -5)
Open the brackets
5x-9y-7x+2y=1-5
Regroup like terms
5x-7x-9y+2y=-4
-2x-7y=-4
The result of adding the two given expressions is -2x-7y=-4.
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Step-by-step explanation:
Answer:
y=29
Step-by-step explanation:
if x=5. 5x5+4. 5x5=25. 25+4=29
Answer:
SE = 0.025
Step-by-step explanation:
We are given;
Sample mean; x¯ = 14.52
Sample standard deviation; s = 0.075
Sample size; n = 9
Now,formula for standard error of sample mean is;
SE = s/√n
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SE = 0.025
