Answer:
A=20 degrees
Step-by-step explanation:
All of the interior angles of a triangle must add up to 180 degrees, so:
2x+5x+11x=180
18x=180
x=10
A=2(10)=20
Hope this helps!
Answer:
As the sample size increases the standard deviation of the sample decreases and hence the variability of the sample decreases.
Hence the second option is the correct option.
Step-by-step explanation:
i) let the standard deviation of the population be given by σ.
ii) for sample taken from among the population of size n the standard deviation of the sample becomes
and so we can see that for the sample the standard deviation of the sample is less than the standard deviation of the sample.
iii) As the sample size increases we can say that the standard deviation of the sample decreases.
iv) the variance , or variability, of a sample is equal to the square of the standard deviation of the sample.
therefore as the sample size increases the standard deviation of the sample decreases and hence the variability of the sample decreases.
Answer: pi (4) squared (12)
Step-by-step explanation: Because like you said pi r squared h
Answer:40 super easy
Step-by-step explanation:
The diagram shows parallel lines cut by two transversal lines creating a triangle. Which statements are true? Check all that apply.
m∠A = 20°
∠B and the angle marked 60° are alternate exterior angles.
m∠C = 100° because it is a vertical angle to the angle marked 100°.
∠B and ∠C are supplementary angles.
m∠A + m∠B + m∠C = 180°
30 is the integer amount of your bank account