Which polynomial is written in standard form for the polynomial 3x^4+x^6-10+5x?
2 answers:
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Answer:
[ 21.79, 33.0 ]
Step-by-step explanation:
Given:
Sample size, n = 7
Sample mean, μ = 27.4
Standard deviation, σ = 5.75
Confidence level is 99%
also, population is normal i.e normally distributed
Thus,
Confidence interval = μ ±
For confidence level of 99%
z-value = 2.58
Therefore,
Lower limit of Confidence interval = μ -
or
Lower limit of Confidence interval = 27.4 -
or
Lower limit of Confidence interval = 21.79
Upper limit of Confidence interval = μ +
or
Upper limit of Confidence interval = 27.4 +
or
Upper limit of Confidence interval = 33.00
Hence, confidence interval = [ 21.79, 33.0 ]
Answer:
Step-by-step explanation:
We have been given a diagram. We are asked to find the measure of angle EBD.
Since ray BD is angle bisector of angle EBC, so measure of angle EBD will be equal to measure of angle DBC.
To find measure of angle EBD, we will substitute in expression
as:
Therefore, measure of angle EBD is 40 degrees.