Answer:
D
Step-by-step explanation:
D, it has a right angle and it shows us that the hypotenuse is congruent and the leg is also congruent.
Answer:
70
Step-by-step explanation:
By exterior angle theorem:

Answer:
See explanation
Step-by-step explanation:
Consider the expression

First, factor it:

Note that

Then

This shows that number 100 is a factor of the expression
and, therefore, this expression is divisible by 100.
Answer:
chisquare = 31.667
degree of freedom = 2
Step-by-step explanation:
Formula for chisquare test = (O-E)²/E
total number observations= 60 + 25 + 15 = 100
Estimated E,
80% x 100 = 80
15%x100 = 15
5% x 100 = 5
chisquare =

= 5 + 6.67 + 20
= 31.667
from the calculation above the value of the chisquare statistic = 31.67
the degree of freedom is the number of samples in the test n - 1
= 3-1
= 2
I have solve this question also in a tabular form to aid understanding in the file i uploaded.
thank you and good luck!
Answer:

Explanation:
The order of the letters naming the triangles is relevant. When it is said that <em>triangle ABC is similar to triangle MOP</em>, means that:
Therefore:
- ∡C = 102º (by substitution)
Now, you have two angles of triangle ABC and can find the third one:
- ∡B = 180º - 45º - 102º = 33º ← answer