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slega [8]
3 years ago
9

What is the solution to this system of equations? 3x + y= 17 X + 2 y = 49 СА. It has no solution. OB. It has infinite solutions,

It has a single solution: x = 15, y = 17. OD. It has a single solution: X = -3, y = 26.​
Mathematics
1 answer:
hammer [34]3 years ago
5 0

Answer:

do you have a pic

Step-by-step explanation:

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What is the perimeter of this quadrilateral?<br> (5,5)<br> (2, 4)<br> (4, 1)<br> (6, 1)
lbvjy [14]

~\hfill \stackrel{\textit{\large distance between 2 points}}{d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}}~\hfill~ \\\\[-0.35em] ~\dotfill\\\\ A(\stackrel{x_1}{5}~,~\stackrel{y_1}{5})\qquad B(\stackrel{x_2}{2}~,~\stackrel{y_2}{4}) ~\hfill AB=\sqrt{[ 2- 5]^2 + [ 4- 5]^2} \\\\\\ AB=\sqrt{(-3)^2+(-1)^2}\implies \boxed{AB=\sqrt{10}} \\\\[-0.35em] ~\dotfill\\\\ B(\stackrel{x_1}{2}~,~\stackrel{y_1}{4})\qquad C(\stackrel{x_2}{4}~,~\stackrel{y_2}{1}) ~\hfill BC=\sqrt{[ 4- 2]^2 + [ 1- 4]^2}

BC=\sqrt{2^2+(-3)^2}\implies \boxed{BC=\sqrt{13}} \\\\[-0.35em] ~\dotfill\\\\ C(\stackrel{x_1}{4}~,~\stackrel{y_1}{1})\qquad D(\stackrel{x_2}{6}~,~\stackrel{y_2}{1}) ~\hfill CD=\sqrt{[ 6- 4]^2 + [ 1- 1]^2} \\\\\\ CD=\sqrt{2^2+0^2}\implies \boxed{CD=2} \\\\[-0.35em] ~\dotfill\\\\ D(\stackrel{x_1}{6}~,~\stackrel{y_1}{1})\qquad A(\stackrel{x_2}{5}~,~\stackrel{y_2}{5}) ~\hfill DA=\sqrt{[ 5- 6]^2 + [ 5- 1]^2}

DA=\sqrt{(-1)^2+4^2}\implies \boxed{DA=\sqrt{17}} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{\Large Perimeter}}{\sqrt{10}~~ + ~~\sqrt{13}~~ + ~~2~~ + ~~\sqrt{17}}~~ \approx ~~ 12.89

8 0
3 years ago
Write the equation of the line with the given slope and y-intercept
goldenfox [79]

Answer:

A) y = x - 3/4

Step-by-step explanation:

The equation of the line with slope m and intercept b is

y = mx + b

Here were have slope = m = 1.

y-intercept = b = -3/4

Equation:

y = mx + b

y = 1x + (-3/4)

y = x - 3/4

Answer: A) y = x - 3/4

4 0
3 years ago
What is 2times .4 tell me how you solved it sorry I forgot how to do that
Eva8 [605]
2 times 0.4 = 0.8.

0.4
X 2
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0.8
7 0
3 years ago
Read 2 more answers
5. Find the value of x in each of the following.<br> 2/3=6/x. 4/7=x/21
nikitadnepr [17]
6/9 and 12/21
i think this is the answer your looking for
7 0
3 years ago
Solve x/-4 - (-8) =12<br> 16<br> 80<br> -80<br> -16
Pachacha [2.7K]

Answer:

x = -16.

Step-by-step explanation:

x/-4 - (-8) = 12

x/-4 + 8 = 12

x/-4 = 12 - 8

x/-4 = 4

Cross multiply:

x = -4 * 4

x = -16.

7 0
3 years ago
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