To find the volume of a cone, you need to plug in the measurement for the height of the cone and the radius of the base into the formula for the volume of a cone. Then simplify to get your answer. Hope this helps!
Answer: Option 'b' is correct.
Step-by-step explanation:
Since we have given that
s = 0.81
n = 31
We need to find the 93% confidence interval to estimate the true standard deviation.
degrees of freedom = df = n-1=30
Here, α = 0.93
1-α=0.07
so,
and
So, we will use "Chi square distribution"
So, the interval would be
Hence, 93% confidence interval would be (0.6581,1.058).
Therefore, Option 'b' is correct.
Answer:
126 degrees
Step-by-step explanation:
Every triangle equals to 180 degrees so all you have to do is add 26+28 which equals 54 then subtract that from 180 and there's your answer.
26+28 = 54
180-54 = 126
Hope this helps! :)
First, find c:
C is a supplementary angle, therefore, calculate x+113=180
180-113=x
X=67
Now, knowing that all of the angles of a triangle add up to 180, calculate for B.
72+b+67=180
139+b=180
B=180-139
B=41
-4. because you do (-2) times (-2)