Answer:
x=5.35
Step-by-step explanation:
2x - 1.7 = 9
2x - 1.7 + 1.7 = 9 + 1.7
2x = 10.7
2x/2 = 10.7/2
x=5.35
Hope this Helps :)
Answer:
Equation: 
m
m
m
Step-by-step explanation:
The equation of the perimeter of this shape can be written as: (Sides with the same number of dashes are equal in length)
Which becomes:
Since AB = 
, we can substitute to get the length of AB:
We can also use substitution to solve for the length of EF:
Hope this helps :)
Answer:
Step-by-step explanation:
A. x=15 10x15= 150-50=100
B. x=13 1/3
C. x= 47
The distance traveled by Raven in 1 hour at the given rate is 4.0 miles.
The given parameters:
- <em>Distance traveled by Raven = 2 2/5 miles</em>
- <em>Time of motion, t = 3/5 hour</em>
The speed of Raven motion is calculated as follows;
The distance traveled by Raven in 1 hour at the given rate is calculated as follows;
Learn more about rate and distance here: brainly.com/question/1090517
You should use a T distribution to find the critical T value based on the level of confidence. The confidence level is often given to you directly. If not, then look for the significance level alpha and compute C = 1-alpha to get the confidence level. For instance, alpha = 0.05 means C = 1-0.05 = 0.95 = 95% confidence
Use either a table or a calculator to find the critical T value. When you find the critical value, assign it to the variable t.
Next, you'll compute the differences of each pair of values. Form a new column to keep everything organized. Sum everything in this new column to get the sum of the differences, which then you'll divide that by the sample size n to get the mean of the differences. Call this dbar (combination of d and xbar)
After that, you'll need the standard deviation of the differences. I recommend using a calculator to quickly find this. A spreadsheet program is also handy as well. Let sd be the standard deviation of the differences
The confidence interval is in the form (L, U)
L = lower bound
L = dbar - t*sd/sqrt(n)
U = upper bound
U = dbar + t*sd/sqrt(n)
