When doe augmented matrix have exactly one solution?
2 answers:
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Answer: B. 95.0
Step-by-step explanation:
In statistics , the famous empirical rule says that " if the data is normally distributed then 68% of the observations will be contained within standard deviations from the arithmetic mean, 95% of the observations will be contained within
standard deviations from the arithmetic mean and 99.7% of the observations will be contained within
standard deviations from the arithmetic mean".
Hence, B is the correct answer.
solve: = 2
Answer:
a. x= 5
Step-by-step explanation:
To solve the question given, we will follow the steps below;
= 2
multiply x to both-side of the equation
× x= 2× x
at the left-hand side of the equation, x will cancel-out x, leaving us with 10
10 = 2x
divide both-side of the equation by 2
10/2 = 2x/2
at the right-hand side of the equation, 2 at the numerator will cancel-out 2 at the denominator leaving us with just x, while on the left-hand side of the equation, 10 will be divided by 2
5 = x
x=5