Answer:
they are congruent.
Step-by-step explanation:
just move A down to -1 and and you can see they are the same.
<span>Addition property of equality</span>
<span>We need to use the distance formula for this problem.
d = sqrt[(x2 - x1)^2 + (y2 - y1)^2]
We need to find these values.
d = (52)^2 + (30)^2
Thus, these ships are approximately sqrt(3604) = about 60 miles apart.</span>
Answer: 87.20
explanation: 20 percent is equal to 0.2 so then you multiply 0.2 by $109 which gives you $21.80 so you then subtract $21.80 from $109 and you get $87.20 as your final answer.
The confidence interval is given by
![14\pm0.392](https://tex.z-dn.net/?f=14%5Cpm0.392)
or (13.608,14.392).
We first calculate the z-score associated with this level of confidence:
Convert 95% to a decimal: 95% = 95/100 = 0.95
Subtract from 1: 1-0.95 = 0.05
Divide by 2: 0.05/2 = 0.025
Subtract from 1: 1-0.025 = 0.975
Using a z-table (http://www.z-table.com) we see that this value has a z-score of 1.96.
The formula for the confidence interval is