Answer:
90 degrees
Step-by-step explanation:
angle ABC is a right angle
Answer:
Step-by-step explanation: 3/5 of 25 is 15 so they will win 15 games
Answer:
The gradient of the line joining the points and is .
Step-by-step explanation:
The gradient of the line joining two distinct point on a plane is represented by the slope of a secant line (), that is:
(1)
If we know that and , then the gradient of the line is:
The gradient of the line joining the points and is .
Answer:
Error
Step-by-step explanation:
(-94)/5+22/22 Given
-18.8+1 PEMDAS (do -94/5 and 22/2)
-17.8 Add the numbers
After you add the numbers, you take the square root. you will get the answer "Error" because you cannot take the square root of a negative number
Answer: 90% confidence interval would be
Step-by-step explanation:
Since we have given that
n₁ = 50
Number of metal tagged penguins survived = 10
So,
n₂ = 50
Number of electronic tagged penguins = 18
So,
So, at 90% confidence interval, z = 1.28
So, interval would be
Hence, 90% confidence interval would be