13/45, or option A, is the correct answer.
Answer:
b
Step by Step Explanation:
Answer:
There is no solution
Step-by-step explanation:
The slopes are the same and the y-intercepts are different.
Think of this as the slope as an amount you get per week and y-intercept as how much you start off with. You have a friend that starts off with 10 dollars and gains 5 dollars every week and you start off with 5 dollars and gains 5 dollars every week. Will you ever catch up to your friend if you and your friend don't spend any money? I don't think so. The solution to a set of equations is when both equations have the same y value with the same x value.
Your welcome for the help and comment if you have any questions! :D
To solve this problem, we make use of the formula for
Confidence Interval:
Confidence Interval = X ± z * σ / sqrt (n)
where X is the mean value, z is the z score which is taken
from the standard tables, σ is the standard deviation, and n is the number of
samples
z = 1.645 (at 90% Confidence Level)
Substituting the values into the equation:
Confidence Interval = 94 ± 1.645 * 12 / sqrt (70)
Confidence Interval = 94 ± 2.36
Confidence Interval = 91.64, 96.36
Therefore at 90% confidence level, the blood pressure
reading ranges from 91.64 mmHg to 96.36 mmHg.
4.5 - 0.5 = 4 Correct
5 root 4 - root 3 = 8 Incorrct
2 root 3 - root 3 = 1.7.... Incorrect
root 8 - root 8 = 0 Correct
Only 1 and 4 is correct, 2 and 3 is incorrect.
