Answer:
9, 30, 27
Step-by-step explanation:
To find the perimeter, you must add up each side. In this scenario, we know that the perimeter is 66 feet. We also know the sides, which are n, 3n+3 and 4n-9.
So, we must add the sides to get 66 feet.
n+3n+3+4n-9=66
Combine like terms, and solve:
(n+3n+4n)+(3+-9)=66
8n+-6=66
8n-6=66
n=9
So if n=9, we can easily find the value of the other sides.
3(9)+3=30 feet.
4(9)-9=27 feet
So, the sides are 9, 30, and 27 feet (in order).
Answer:
Step-by-step explanation:
Answer:
(iii) The conclusion of a right tail hypothesis test (test of significance) for a population mean at the significance level should always match the conclusion of a two-sided confidence interval for estimating the same population mean at the confidence level 1- (iv) Keeping all other quantities fixed, increasing the significance level will increase the power of the test.
Explanation:
Improving your process decreases the standard deviation and, thus, increases power. Use a higher significance level (also called alpha or α). Using a higher significance level increases the probability that you reject the null hypothesis. ... (Rejecting a null hypothesis that is true is called type I error.)
Increase the power of a hypothesis test
1. Use a larger sample. ...
2. Improve your process. ...
3. Use a higher significance level (also called alpha or α). ...
4. Choose a larger value for Differences. ...
5. Use a directional hypothesis (also cathe called a one-tailed hypothesis).
Answer:
x=2√3
Step-by-step explanation:
Let's solve your equation step-by-step.
x2
3
=4
Step 1: Simplify both sides of the equation.
1
3
x2=4
Step 2: Divide both sides by 1/3.
1
3
x2
1
3
=
4
1
3
x2=12
Step 3: Take square root.
x=±√12
x=2√3 or x=−2√3
The answer is D your are welcome :)
