Answer:
20
Step-by-step explanation:
The midsegment of a trapezoid is calculated as
=
=
= 20
Three friends went to a baseball game. Each ticket cost $20 and all three friends bought a baseball hat for $15. If 3(20 + 15) r
1 answer:
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Complete Question
A biologist reports a confidence interval of (3.5,4.9) when estimating the mean height (in centimeters) of a sample of seedlings. What is the estimated margin of error and the sample mean?
Answer:
The margin of error is
The sample mean is
Step-by-step explanation:
from the question we are told that
The upper limit is
The lower limit is
Generally the margin of error is mathematically represented as
Generally the sample mean is mathematically evaluated as
=>
=>
The simple answer (not using multiples of 2
(360°)) is
![= \sqrt[3]{125} ((cos( \frac{288}{3})) + isin(( \frac{288}{3}))) = 5(cos96 + isin96)](https://tex.z-dn.net/?f=%3D%20%20%5Csqrt%5B3%5D%7B125%7D%20%28%28cos%28%20%5Cfrac%7B288%7D%7B3%7D%29%29%20%2B%20isin%28%28%20%5Cfrac%7B288%7D%7B3%7D%29%29%29%0A%3D%20%205%28cos96%20%2B%20isin96%29)