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Korolek [52]
1 year ago
10

I need helpppp..................

Mathematics
1 answer:
Phantasy [73]1 year ago
6 0

Answer:

First: 13

Second: 21.79

Step-by-step explanation:

In the photo

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Write a expression that is equivalent of 4+3(5+x)
stepladder [879]

Answer: 19 + 3x

Step-by-step explanation:

Given : 4 + 3(5+x)

expanding , we have

4 + 15 + 3x

= 19 + 3x

Therefore :

4 + 3 ( 5 + x ) = 19 + 3x

3 0
3 years ago
Select one:<br><br> A. 7<br> B. 0 (INCORRECT)<br> C. (12,-5) <br> D. (2,3) (INCORRECT)
Veronika [31]
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3 years ago
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Where on the graph of 2x - 6y = 7 is the x-coordinate twice the y-coordinate?
Nikolay [14]

Answer:

The required point is P(-7,\frac{-7}{2}) where, x-coordinate twice the y-coordinate on line 2x - 6y = 7

Step-by-step explanation:

Given equation of line is 2x-6y=7

To find point on graph whose x-coordinate twice the y-coordinate:

Let y be y-coordinate of point

Hence, x-coordinate of point will be 2y

The required point is P(2y,y) on equation of line 2x-6y=7

Now,

2x-6y=7

2(2y)-6y=7

-2y=7

y=\frac{-7}{2}

Thus,

The required point is P(-7,\frac{-7}{2})

Note: Figure show equation of line red line and point P as blue dot.

5 0
3 years ago
Which of the following points could you remove so that the resulting graph is the graph of a function?
larisa [96]

Answer:

(1, -3) can be removed so that the resulting graph represents a function. A relation from a set X to a set Y is called a function if each element of X is related to exactly one element in Y

Step-by-step explanation:

7 0
2 years ago
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In 20 years, Finn will be 3 times as old as he is right now. How old is he right now?​
Bumek [7]
I think it is 60 years old?
3 0
1 year ago
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