<h3>
Answer: (1,3)</h3>
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Explanation:
Note that the two shaded regions overlap to form the darker shaded region. The point (1,1) is only in the green region, but not in the blue region. It needs to be in both regions for it to be a solution to the system. In contrast, the point (1,3) is on the boundary of the blue region and in the green region as well. It's a solution point because of this.
Points on the boundary are included because of the "or equal to" as part of the inequality sign. Hence the solid boundary lines rather than dashed boundary lines.
The solution (1,3) means that x = 1 and y = 3 pair up together. It says that Cody can buy x = 1 hotdog and y = 3 packs of peanuts so that he has at least 4 snacks, and he stays within the $7 budget.
Going back to (x,y) = (1,1) for a moment, this isn't a solution because x+y = 1+1 = 2 is not 4 or larger. In other words, he only buys 2 snacks here instead of 4 or more.
The z-value that corresponds to a two-tailed 95% confidence interval is z = +/- 1.96. Then the bounds of the confidence interval can be determined as:
Lower bound = mean - z*SD/sqrt(n) = 20 - 1.96*2/sqrt(100) = 20 - 0.12 = 19.88 hours
Upper bound = mean + z*SD/sqrt(n) = 20 + 1.96*2/sqrt(100) = 20 + 0.12 = 20.12 hours
So the first choice is the correct answer: 19.88-20.12 hours
Answer:
X=3
Step-by-step explanation:
Hope this helps and have a wonderful day!!!
The answer is: "

" ;
or, write as: "
0.63333333333..." ; or, round to: "
0.6333" .
__________________________________________Explanation:__________________________________________ 1.9 ÷ 3 =

;
=

;
=

______________________
Write as: "

" ;
or, using a calculator, write in "decimal form" ;
→

= 19 ÷ 30 = "<span>
0.63333333333...." ;
</span>
_______________________________________________________The answer is: "

" ;
or, write as: "
0.63333333333..." ; or, round to: "<span>
0.6333" .
</span>
_______________________________________________________
The answer should be 40% because thats the max the density goes