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Angelina_Jolie [31]
3 years ago
13

3r + 7 = -8 what does r =

Mathematics
1 answer:
jekas [21]3 years ago
4 0

Answer: R = -5

Step-by-step explanation: 3r + 7= -8 is turned into 3(-5) + 7= 8.                                             -15 + 7=8

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Which equation describes the line with the slope 2/3 that passes through the given point on the graph?
Phoenix [80]

<em>Answer: y=2/3x-2</em>

<em />

<em>Step-by-step explanation:</em>

<em>Slope intercept form is: y=mx+b</em>

<em>m=slope</em>

<em>b= y-intercept</em>

<em>slope is </em><em>2/3</em>

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What is 0.46 cm converted into millimeters
Arte-miy333 [17]
1cm = 10mm
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PLEASE HELP NOW!<br> (-2, -4) and (-3, -3) in a linear equation
chubhunter [2.5K]

The linear equation is y = -x - 6

Step-by-step explanation:

To form a linear equation from two points lie on the line which the equation represented it

  • Find the slope of the line by using the formula m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}
  • Then use the slope-intercept form of the equation y = m x + b
  • To find the value of b substitute x and y of the equation by the coordinates of one of the two given points

∵  Points (-2 , -4) and (-3 , -3) lie on the line

∴ x_{1} = -2 and x_{2} = -3

∴ y_{1} = -4 and y_{2} = -3

- Substitute these values in the formula of the slope

∵ m=\frac{-3-(-4)}{-3-(-2)}=\frac{-3+4}{-3+2}=\frac{1}{-1}

∴ m = -1

∵ The form of the equation is y = m x + b

∵ m = -1

∴ y = (-1) x + b

∴ y = -x + b

To find b substitute x and y in the equation by the coordinates of

point (-2 , -4) OR (-3 , -3)

∵ x = -3 and y = -3

∴ -3 = -(-3) + b

∴ -3 = 3 + b

- Subtract 3 from both sides

∴ -6 = b

∴ The equation is y = -x + (-6)

∴ y = -x - 6

The linear equation is y = -x - 6

Learn more:

You can learn more about linear equation in brainly.com/question/4326955

#LearnwithBrainly

4 0
3 years ago
Can you help me out with this one?
shepuryov [24]

Answer: 98

Step-by-step explanation:

98 / (-7) = -14

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3 years ago
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