1 answer:
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Answer:
1A) Degree: 3
1B) 4 terms
1C)
2A)
2B)
Step-by-step explanation:
The given polynomial is
Let us rewrite the polynomial in decreasing powers of x.
This gives us the expression;
-----> This is called the standard form.
So let us answer the question:
A) The degree is the exponent of the first term when the polynomial is written in standard form.
Degree: 3
B) The terms are separated by + or - signs.
Number of terms: 4
C) Standard form:
2A) The given expression is
We expand using the distributive property to get:
We regroup the terms to get:
We simplify to obtain:
2B) The given expression is
Regroup the terms to get:
We simplify to get:
Answer:
about 82%
Step-by-step explanation:
The distribution of sample means has a standard deviation that is the pipe standard deviation divided by the square root of the sample size. Thus, the standard deviation of the sample mean is 0.003/√9 = 0.001.
Then the limits on sample mean are 1.010 - 1×0.001 = 1.009 and 1.010 +2×0.001 = 1.012. The proportion of the normal distribution that lies between -1 and +2 standard deviations is about 81.9%.
