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hodyreva [135]
3 years ago
12

Which of the following points IS a solution to the system: y > - 3x + 4 / y > 2x / - y < 7 Selected answer is not corre

ct.

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
6 0

Answer:

Solution : Third Option

Step-by-step explanation:

The first step here is to make all the signs uniform. As you can see the third inequality has a less than sign, which we can change to a greater than sign by dividing negative one on either side, making the inequality y > - 7.

\begin{bmatrix}y>-3x+4\\ y>2x\\ y>-7\end{bmatrix}

Now take a look at the third option. Of course the y - coordinate, 3, is greater than - 7, so it meets the third requirement ( y > - 7 ). At the same time 3 > 1( 2 ) > 2, and hence it meets the second requirement as well. 3 > - 3( 1 ) + 4 > - 3 + 4 > 1, meeting the first requirement.

Therefore, the third option is a solution to the system.

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Give the positive solution of x^2 – 36 = 5x.
andriy [413]
The equation given in the question is 

x^2 - 36 = 5x
x^2 - 5x - 36 = 0
x^2 - 9x + 4x - 36 = 0
x(x - 9) + 4(x - 9) = 0
(x - 9) (x + 4) = 0
From the above set we can say that x = 9 is the positive solution of the equation given in the question. I hope that this is the answer that you were looking for and it has come to your great help.
5 0
3 years ago
Simplify £2.50 : 60p
slavikrds [6]

Answer:

Here we will simplify 2/50 to its simplest form and convert it to a mixed number if necessary.

In the fraction 2/50, 2 is the numerator and 50 is the denominator.

When you ask "What is 2/50 simplified?", we assume you want to know how to simplify the numerator and denominator to their smallest values, while still keeping the same value of the fraction.

We do this by first finding the greatest common factor of 2 and 50, which is 2.

Then, we divide both 2 and 50 by the greatest common factor to get the following simplified fraction:

1/25

Therefore, this equation is true:

2/50 = 1/25

If the numerator is greater than or equal to the denominator of a fraction, then it is called an improper fraction. In that case, you could convert it into a whole number or mixed number fraction.

1/25 = Proper Fraction

Step-by-step explanation:

please mark brainliest

4 0
3 years ago
You need a 75 % alcohol solution. On hand, you have a 260 mL of a 30% alcohol mixture. You also have 95 % alcohol mixture . How
user100 [1]

30 \: percent \: alcohol \: in \: 260 \: ml \\ alcohol = 0.3 \times 26 0= 78 \: ml

c( \gamma ) =  \frac{78 +  0.95\gamma }{260 +  \gamma }  \times 100

c( \gamma ) = 75

\frac{78 +  0.95\gamma }{260 +  \gamma }   = 0.75

78 +  0.95\gamma  = 0.75 \gamma  + 195 \\ 0.2 \gamma  = 117 \\  \gamma  = 585

we \: need \: 585 \: ml \: of \: 95% \: alcohol

6 0
2 years ago
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The sides of an triangle measure six inches eight inches and ten inches the triangle has one 90 degree angle what typ of trangle
MaRussiya [10]

It would be a right triangle.

7 0
3 years ago
What is the equation of the line in standard form of the graph below?
Mashcka [7]

Answer:

Step-by-step explanation:

8 0
2 years ago
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