Answer:
<u><em>True</em></u> because they both are triangles, they both have tree side but one is just smaller than the other.
Answer:
The expression equivalent is 12 (2x+1)
Step-by-step explanation:
X^2 + 3x - 28 factors to (X+7)(X-4)
X^2 - 7X + 12 factors to (X-4)(X-3)
Now we see that the equation is [(X+7)(X-4)]/[(X-4)(X-3)]
By dividing the top and bottom by (X-4), we see that the equation equals (X+7)/(X-3).
Answer:
We need at least 601 incomes.
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.
How many such incomes must be found if we want to be 95% confident that the sample mean is within $500 of the true population mean?
We have to find n, for which
. So






Rounding up
We need at least 601 incomes.
Answer:
5825.33333333
Step-by-step explanation:
Multiply and divide