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Likurg_2 [28]
4 years ago
8

Which inequality will have a solid boundary line and a shaded region above its graph?

Mathematics
2 answers:
Alekssandra [29.7K]4 years ago
5 0
A solid line means either ≥ or ≤

So either A or B
 
<span>Above the graph: Must be greater than y

Therefore, the final answer would be letter B:

</span><span>2x − 3y ≤ 3 

I hope my answer has come to your help. God bless and have a nice day ahead!
</span>
mr_godi [17]4 years ago
3 0

Answer:

2x-3y\leq 3

Step-by-step explanation:

The first inequality 2x-3y\leq 3 is the one that have a solid boundary line and a shaded region above its graph.

First of all, when the inequality signs are , the boundary line isn't solid. When the inequality signs are \leq ,\geq, the bounday line is solid. The reason of this is because the second pair of relations involve equivalen, which refer to all solution on the boundary line.

Having said that, the possible answers are the first and second one, because they have  \leq ,\geq .

Now, to know if the shaded are is above the line, we need to evaluate the expression at (0,0).

In the first inequality, we have

x-y\geq 3\\0-0 \geq 3\\0 \geq 3 which is false.

The second inequality

2x-3y\leq 3\\0-0 \leq 3 which is true.

Therefore, the second inequality has a shaded region above its line. You can chek this out in the image attached.

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An Internet store charges a base fee plus $1.50 per pound to ship items. The table shows samples of their shipping rates.
nalin [4]

Answer: For Last Question 4.50

Step-by-step explanation:It depends on the price per pound. Let's say the price per pound is 50 cents (or 0.50). (This is an example, the answer I'm giving will most likely NOT be correct, due to the nature of your question - sorry!) To calculate the price of Derek's package, you would multiply 7 (the weight of the package) by 0.50 (the price per pound), which totals to 3.50 Next, to calculate the price for Keisha's package, you'd do the same thing, but instead of multiplying 7 by the price per pound, you would multiply 10 by the price per pound, or 0.50. This multiplies out to 5 dollars. Next you'd subtract Derek's price from Keisha's, which is 5 - 3.50 or 1.50. If it is asking for a percentage, it would be about 150%.

7 0
3 years ago
Read 2 more answers
How can you determine if a square root is completely simplified?
ycow [4]

Answer:

It cannot be divided by any number and equal a whole number.

Step-by-step explanation:

Okay, so I'm going to give an example of the simplifying process.

\sqrt{243}

If you were to just type this in to a calculator you would get 15.58 and so on, so that means we have to just simplify instead of solving for accuracy purposes.

So take 243 and divide it by a number that can go into it equally. I'm going use 3. When you do that you get 81. Usually when I do this I draw it out to better see it, so I'm going to try for you. The 3 is prime so we can't simplify that term anymore, but you can still simplify the 81, so that is what we do next. I'm going to use 3 to make it easier in the end results. Notice 3 is prime but 27 still is not, so we repeat this process again. I'm gonna stick with 3. Now simplify the 9.

                 243

3                                     81

                                3            27

                                           3      9

                                                  3    3

For every pair of number we have that are the same we get to put one outside the sqareroot sign (I know that sounds confusing). Start by listing them like this.

3 x 3 x 3 x 3 x 3

Now organize into groups of two.

(3x3)(3x3)(3)   Notice we have two groups that are paired. This means we can take two 3's and bring them outside the squareroot sign. Like this

3x3\sqrt{3}  

9\sqrt{3}

The lone 3 just goes back in the squareroot. once you can't find a number to divide the number inside the sign by you have simplified the expression completely. Hope that makes some sense

5 0
3 years ago
1 dozen of eggs for Rs 84 or 18 eggs for Rs 117 . Which is the best buy in the following cases. full explanation
elixir [45]

Answer:

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8 0
2 years ago
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Harrizon [31]

Answer:

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Mark will read 20 pages daily.

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You set both equal to each other because you want to know when they read the same amount of pages.

15x+50=20x

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