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Bad White [126]
2 years ago
11

U

Mathematics
1 answer:
katen-ka-za [31]2 years ago
8 0

Answer:

x = 4/7

y = 60/7

Step-by-step explanation:

3x + 4y = 36

y = x + 8

Substitute the second equation into the first since it already has the y isolated for you:

3x + 4(x + 8) = 36

3x + 4x + 32 = 36

7x = 4

x = 4/7

Take the answer you got from the equation above and plug that into the second equation:

y = 4/7 + 8

y = 60/7

To check just LS/RS both equations:

3(4/7) + 4(60/7) = 36

12/7 = 240/7 = 36

252/7 = 36

36 = 36

LS = RS

60/7 = 4/7 + 8

60/7 = 60/7

LS = RS

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sleet_krkn [62]
-3x+2 < 8
-2 -2
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7 0
3 years ago
Question 2
fomenos

Answer:

D. (-2,-5), (0, -7), (1, -4)

Step-by-step explanation:

From Function Theory we must remember that range of a function is the set of images related to elements of the domain. In this case, we must find the image of each of the three elements that forms the domain of f(x, y) = (y+2, -x-4), which are: A(x,y) = (1, -4), B(x,y) = (3,-2) and C(x,y) = (0,-1).

Then we proceed to find all elements of range:

A(x,y) = (1, -4)

f(1,-4) = (-4+2,-1-4)

f(1,-4) = (-2,-5)

B(x,y) = (3,-2)

f(3,-2) = (-2+2,-3-4)

f(3,-2) = (0,-7)

C(x,y) = (0,-1)

f(0,-1) = (-1+2,0-4)

f(0,-1) = (1,-4)

Which corresponds to option D.

3 0
3 years ago
Please help me :)!!!!!!!!!!!!!
den301095 [7]

Answer: 7

Step-by-step explanation:

Because to find the median to find the numbers in a triangle.

6 0
3 years ago
What is 0.000000783 written in scientific notation?
fredd [130]
7.83 x 10^-7 (the *^* is where the power goes)
3 0
2 years ago
Which of the following is not a linear equation? A. x-y=7 b. 0.5x-0.2y=7 c.5y^2=xy+2x d. 2x+y=4
vitfil [10]

Answer:

C

hope that helps!

please mark brainiest<3

4 0
3 years ago
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