Brian and Mark are fishing. They both catch a fish. Brian's fish weighs 17
2 answers:
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Answer:
Step-by-step explanation:
Given : sample size : n= 51
sample standard deviation : s= 0.46
Significance level :
Using chi-square distribution, the critical values will be :
Confidence interval for population standard deviation () :
Substitute all the values , we get
Hence, the 95% two-sided confidence interval for σ :
Answer:
Option A
Step-by-step explanation:
The first thing we want to do here is identify whether or not the diagonals are perpendicular, which helps much to know to prove what angle AOB.
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Let us say that this is a rhombus. That would make the diagonals perpendicular, and hence ∠AOB should be 90 degrees, but let's not jump to conclusions. We need to calculate the length of BO. By Pythagorean Theorem it should be the following length -
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Knowing BO, to prove that this is a rhombus we can find the length of BO another way, and match it to the length 6.26 -
Δ ABD = Equilateral,
BD = 10 cm,
" Coincidence Theorem " - BO = 5 = OD.
Here BO = 5. 5 is close to 6.26 but not exactly, so the measure of angle AOB is not 90, but better yet 80.
Answer:
slope =
Step-by-step explanation:
The slope of a line can be found by identifying two points and the graph and finding the overall change in y over the change in x:
Using the points on the given graph of (-3, 2) and (1, -2):
So, slope =