What is the value of y? 09 O 18 O 3
2 answers:
Answer:
The answer is 9
Step-by-step explanation:
First looking at the triangle with the 90 degree sign in it we know that the other angles in that triangle will have to add with 90 to equal 180
So doing the easier way replace 9 with y and do this for the other numbers 3 and 18 to see if the result of (2y+18) and 4y will equal the same number
and because the lines on each triangle represent that those sides are congruent
I hope this because I am only using what I remember from geometry but please let me know if I am wrong
You might be interested in
Answer:
Step-by-step explanation:
From the information given :
The null hypothesis
The alternative hypothesis
Given that:
the sample size n = 21
sample standard deviation s = 68
population standard deviation σ = 60
a) The level of significance
b) The chi-square statistics can be calculated as:
The degree of freedom is :
= n - 1
= 21 - 1
= 20