Answer:
 y=4/3 x -5/3
Step-by-step explanation:
Please see attached picture for full solution.
 
        
             
        
        
        
First you must remember that: An isosceles triangle consists of a vertex angle and 2 CONGRUENT base angles. 
subtract 180-24
156/2
=78
CHECK:
25+78+78=180
        
             
        
        
        
Answer:
A sample of 179 is needed.
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:
 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  .
.
That is z with a pvalue of  , so Z = 1.44.
, so Z = 1.44.
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.
 is the standard deviation of the population and n is the size of the sample.
A previous study found that for an average family the variance is 1.69 gallon?
This means that 
If they are using a 85% level of confidence, how large of a sample is required to estimate the mean usage of water?
A sample of n is needed, and n is found for M = 0.14. So






Rounding up
A sample of 179 is needed.
 
        
             
        
        
        
i solved that here
http://lianmath.com/what-is-the-turning-of-the-graph-of-fx-x3-2/
 
        
             
        
        
        
Answer: I think its 4 + 2m