Since ABCD is a square
BE = FD
BC = AB
Angle ABE = angle BCF
With these, triangle ABE = triangle BCF
And
angle BEA = angle CFB by CPCTC
And with this
DG = AB
Correct answer is C CCCCCC
Answer:
The 99% confidence interval for the average length of time all car owners plan to keep their cars is between 3.85 years and 10.55 years.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 7.2 - 3.35 = 3.85 years
The upper end of the interval is the sample mean added to M. So it is 7.2 + 3.35 = 10.55 years
The 99% confidence interval for the average length of time all car owners plan to keep their cars is between 3.85 years and 10.55 years.
Answer:
Subtract:
2/3 - 1/2 = 2/3 • 2/2 - 1/2 • 3/3 = 4/6 - 3/6 = 4-3/6 = 1/6
For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM(3, 2) = 6. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 3 × 2 = 6. In the next intermediate step the fraction result cannot be further simplified by cancelling.
In words - two thirds minus one half = one sixth.
Hope this helps
Answer:
-7x+11 is simplified version of -3x-4x+11
