Answer:
The answer is A, ∠ABC is obtuse. We don't know if it's true or false.
Step-by-step explanation:
An open statement in mathematics is a statement where you don't know if it's true or false.
Answer:
The confidence interval at a 90% confidence level is ($43.79, $48.21).
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the mean subtracted by M. So it is 46 - 2.21 = 43.79
The upper end of the interval is the mean added to M. So it is 46 + 2.21 = 48.21.
The confidence interval at a 90% confidence level is ($43.79, $48.21).
Answer:
Step-by-step explanation:
The volume is the product of the 3 dimensions. We have
<h2>V = (4a²b³)(2ab)(3ab²)</h2>
V = 24(a^4)(b^6)
I think your answer is B but I’m not sure sorry I hope I helped
Answer:
Area is about 1520.53
Step-by-step explanation:
A =
A ≈ 1520.53