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sp2606 [1]
2 years ago
7

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! pls <3

Mathematics
1 answer:
NeX [460]2 years ago
5 0

Answer:

y=\frac{2}{3}x+\frac{4}{3}

Step-by-step explanation:

Let's write the equation of the line in the slope-intercept form. That is, y= mx +c, where m is the slope and c is the y-intercept.

Identify 2 coordinates on the line to calculate the slope.

The 2 points are (1, 2) and (4, 4).

Slope

=\frac{y_1-y_2}{x_1-x_2}

= \frac{4-2}{4-1}

= \frac{2}{3}

Substitute the value of the slope into m:

y=\frac{2}{3}x+c

Substitute any point into the equation to find c:

When x= 1, y= 2,

2= \frac{2}{3}(1)+c

Solve for c:

c= 2-\frac{2}{3}

c= \frac{4}{3}

Thus, the equation that represents the line is y=\frac{2}{3}x+\frac{4}{3}.

Additional:

Should you wish to learn more about slope-intercept form, do check out the following!

  • brainly.com/question/26351470
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4 (negative one-half x + 7) + 5 x = 15
Ronch [10]

Answer:

Step 3 is incorrect

Step-by-step explanation:

4(-1/2x + 7) + 5x = 15

-2x + 28 + 5x = 15

3x + 28 = 15

3x + 28 - 28 = 15 - 28

3x = -13

4 0
3 years ago
Please help me ASAP it’s times THANK U
goblinko [34]

Answer:

Only choices C and D are solutions

Step-by-step explanation:

6x + 3y = -15

y = -2x - 5

6x + 3y = -15

6x + 3(-2x - 5) = -15

6x - 6x - 15 = -15

0 = 0

Since 0 = 0 is a true statement, both equations of this system are the same equation and represent a single line on the coordinate plane.

We need to check each choice in just one equation.

Let's use the second equation.

y = -2x - 5

A.

(2, 7)

7 = -2(2) - 5

7 = -4 - 5

7 = -9   False

Not a solution

B.

(5, 0)

0 = -2(5) - 5

0 = -10 - 5

0 = -15     False

Not a solution

C.

(-3, 1)

1 = -2(-3) - 5

1 = 6 - 5

1 = 1   True

Solution

D.

-13 = -2(4) - 5

-13 = -8 - 5

-13 = -13    True

Solution

Answer: Only choices C and D are solutions

7 0
2 years ago
gerald spent $5.12 for a drink and a sandwich his drink cost $1.30 did he have a ham sandwich for $3.54 a tuna sandwich for $3.8
Korolek [52]
5.12-1.30= your answer
7 0
3 years ago
Read 2 more answers
Find and interpret the mean absolute deviation of the data. Round your answers to the nearest tenth. If necessary 101.5 98.7 95.
lesya692 [45]

Answer:

\bar X = 100.4

And we can calculate the deviations from each value like this:

|101.5-100.4 |=1.1

|98.7-100.4 |=1.7

|95.4-100.4 |=5.0

|92.3-100.4 |=8.1

|109.8-100.4 |=9.4

|104.7-100.4|=4.3

And the mean absolute deviation would be:

MAD =\frac{1.1+1.7+5.0+8.1+9.4+4.3}{6}= 4.93

Step-by-step explanation:

For this case we have the following dataset given:

101.5 98.7 95.4 92.3 109.8 104.7

We can calculate the mean with the following formula:

\bar X =\frac{\sum_{i=1}^n X_i}{n}

And replacing we got:

\bar X = 100.4

And we can calculate the deviations from each value like this:

|101.5-100.4 |=1.1

|98.7-100.4 |=1.7

|95.4-100.4 |=5.0

|92.3-100.4 |=8.1

|109.8-100.4 |=9.4

|104.7-100.4|=4.3

And the mean absolute deviation would be:

MAD =\frac{1.1+1.7+5.0+8.1+9.4+4.3}{6}= 4.93

8 0
3 years ago
Find the area of the rug. DO NOT ROUND. <br><br> what is the area?
Neporo4naja [7]

Answer:

28.26 ft²

Explanation:

\sf area \ of  \ circle    = \pi r^2

<u>Here given diameter: 6 ft</u>

radius: d/2 = 6/2 = 3 ft

========

area of rug:

\dashrightarrow \  \pi (3)^2

\dashrightarrow \  9\pi

\dashrightarrow \  9(3.14)

\dashrightarrow \  28.26 \ ft^2

7 0
2 years ago
Read 2 more answers
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