Answer:
The value is
Step-by-step explanation:
From the question we are told that
The null hypothesis is
The level of significance is
From the z table the critical value of considering the two tails of the normal curve( This is because this a two tailed test ) is
Hence the critical value is
Answer:
125 times brainliest please?
Step-by-step explanation:
Answer:
x-2y/x
Step-by-step explanation:
x²-4xy+4y²/x²+xy-6y²÷x²+3xy/x²+6xy+9y² = x-2y/x
Jamal's score is 80
<u>Explanation:</u>
Given:
Number of questions = 100
Let w be the number of wrong answers
Let r be the number of right answers
According to question,
r = 4w
r + w = 100
Solving both the equations we get:
4w + w = 100
5w = 100
w = 20
If w = 20 then r = 4 X 20 = 80
Therefore, Jamal's score is 80
Answer:
yes!
Step-by-step explanation:
if it has a 90° angle it is a right triangle :)