Answer:
95% Confidence interval: (14.4537 ,15.1463)
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 15 feet
Sample mean,
= 14.8 feet
Sample size, n = 16
Alpha, α = 0.05
Sample standard deviation, σ = 0.65 feet
Degree of freedom = n - 1 = 15
95% Confidence interval:
Putting the values, we get,
is the required confidence interval for the true mean length of rods.
Perimeter = 2l + 2w
Divide 184 by 4
184/4 = 46
Subtract by 6
46 - 6 = 40
Add by 6
46 + 6 = 52
The length is 52, and the width is 40.
We can verify by plugging these values into the original equation.
52*2 + 40*2 = 184
Do you simplify it or multiply it?
Answer:
i think its b
Step-by-step explanation:
because you have to add or subtract on both sides
Answer:

Step-by-step explanation:
We need to find the sum of
and
first.
Adding
+
Combining like terms, we get

-2ab+2ab = 0

Therefore,
.
Now, we need to find the sum of
.
Adding
.
Combining like terms, we get

.
Therefore,

Now, subtracting
.
Distributing minus sign over second parenthesis, we get
.
Combining like terms,


Therefore,
.
Therefore, the difference of the sum of
+
and
is 