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eduard
2 years ago
6

Solve this system of equations using the Substitution method. 3x + y = -2 y = 2x + 3

Mathematics
1 answer:
alukav5142 [94]2 years ago
6 0

Answer:

Step-by-step explanation:

we see that y = -3x-3

substitute that into the other equation to get

-3x-3 = 2x+7

-5x = 10

x = -2

so, y = -3(-2)-3 = 3

check to make sure (-2,3) solves both equations.

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Determine the first four numbers of N if N is<br><img src="https://tex.z-dn.net/?f=N%20%3D%20%20%5Csqrt%7B122436486072...2400%7D
Anestetic [448]

Answer:

  • 1106 . . . or
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  see below for explanation

Step-by-step explanation:

The first four digits of the root depend on whether the exponent in scientific notation is even or odd.

If it is <em>even</em>, then the mantissa of the root is ...

N \approx\sqrt{1.2243648607}\approx 1.106\dots

If it is <em>odd</em>, then the mantissa of the root is ...

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6 0
3 years ago
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zheka24 [161]

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3 years ago
Rectangular swimming pool has a perimeter of (6x-6) feet and a width of x. find the length
Dvinal [7]
The first thing you should know for this case is that the perimeter of a rectangle is defined as:
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7 0
3 years ago
The graph shows two polygons ABCD and A′B′C′D′.
stellarik [79]

Answer:

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and

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Step-by-step explanation:

First of all, the two steps are the same, just in a different order

Second, if you look at the instructions you can see what would happen to the quadrilateral. Reflecting over the y-axis would make the shape flip horizontally (left to right), as shown in the image. This means the points on the left move to the right, and the points on the right move to the left. Top and bottom points stay the same. And the "translation" just means to slide. In both the answers, it says "translate 1 unit down", which just means "move 1 unit down", which is exactly what happens in the image

7 0
3 years ago
Read 2 more answers
Please please please help
Mnenie [13.5K]

Answer: D

Step-by-step explanation: solve it by substitution

6 0
3 years ago
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