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marishachu [46]
2 years ago
15

What is an equivalent expression to 4(5a+2-3b)

Mathematics
1 answer:
marishachu [46]2 years ago
5 0
20a+8-12b. Could be written as 20a-12b+8
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3 years ago
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What is the slope of a line that is perpendicular to the
alexgriva [62]

Answer:

The slope of a line that is perpendicular to the line

shown in the graph is = 4

Hence, option 'd' is true.

Step-by-step explanation:

From the line equation, let us take two points

  • (0, 2)
  • (4, 1)

Finding the slope between two points

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

\left(x_1,\:y_1\right)=\left(0,\:2\right),\:\left(x_2,\:y_2\right)=\left(4,\:1\right)

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As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

The slope of the perpendicular line will be:

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

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shown in the graph is = 4

Hence, option 'd' is true.

5 0
3 years ago
What is the formula for the area of a triangle?
SashulF [63]

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<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>1</em><em>/</em><em>2</em><em>*</em><em>4</em><em>*</em><em>5</em>

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6 0
3 years ago
What is -6x+4=-50 and 5x+6=-44 also -3(7+6x)=-201 please solve these equations and show work
grandymaker [24]
Remember you can do anyting to an equation as long as ou do it to both sides



-6x+4=-50
minus 4 both sides
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divide both sides by -6
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5x+6=-44
minus 6 both sides
5x=-50
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normally you would distribute (that works) but it's easier to divide both sides by -3
7+6x=67
minus 7 both sides
6x=60
divide by 6 both sides
x=10
6 0
4 years ago
The slope of a line is negative for use the cordons of the labeled point to find a point-slope equation of the line.
Alexeev081 [22]
For slope m and point (x₁, y₁), the point-slope equation of the line can be written as
  y -y₁ = m(x -x₁)

You have m = -4 and (x₁, y₁) = (4, -9), so the equation of your line is
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5 0
4 years ago
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