Answer:
27
Step-by-step explanation:
3*3*3=27
2+31n or 2-31n
Step-by-step explanation:
because you add 1 and 1
and then add 24n to -55n is -31 and I'm pretty sure a minus sign and negative sign together would be 31. So I believe it is 2+31n. I am so sorry if I'm wrong.
Answer:
I think 10??"
Step-by-step explanation:
Answer:
C. It is an angle that has its vertex at the center of a circle.
Step-by-step explanation:
That's the definition.
A. is wrong. An angle with a measure greater than 180° is an obtuse angle,
B. is wrong. An angle that has its vertex on the circle is an inscribed angle.
D. is wrong. Part of the circumference of a circle is an arc.
Answer:
C. (n₁ + n₂ - 2) degrees of freedom
Step-by-step explanation:
The t-test for difference between two mean when variance are equal is:
where ,
= Mean of Sample 1
= Mean of Sample 2
s = standard deviation
n_1 = size of Sample 1
n_2 = size of Sample 2
and t is Student's t-test with (n₁ + n₂ - 2) degrees of freedom.
