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Natasha2012 [34]
3 years ago
14

Please help with this question!!

Mathematics
1 answer:
ratelena [41]3 years ago
7 0

Answer:

16

Step-by-step explanation:

3x+8=7x+2

-3x.  =-3x

       =4x

8.    = 4x

x=2


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Write a positive or negative integer that represents the situation.
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Answer:

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Step-by-step explanation:

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Which way to save money is not FDIC-insured
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(-4, 7), (-6,-4)<br><br> find the slope of the line through each pair of points
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Answer:

slope = 11/2

Step-by-step explanation:

If you are given two points, you can find the slope using the point-slope equation. The equation looks like this:

y₁ - y₂ = m(x₁ - x₂)

In this form, "m" represents the slope, "x₁" and "y₁" represent the values from one point, and "x₂" and "y₂" represent the values from the other point. You can plug the values from the points into the equation and simplify to find the slope.

Point 1: (-4, 7)                Point 2: (-6, -4)

x₁ = -4                              x₂ = -6

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y₁ - y₂ = m(x₁ - x₂)                               <----- Point-slope form

7 - (-4) = m(-4 - (-6))                            <----- Insert values

11 = m(2)                                             <----- Simplify

11/2 = m                                             <----- Divide both sides by 2

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y=ax^2+bx+c\\\\vertex:(x_v;\ y_v)\\\\x_v=\frac{-b}{2a}\ and\ y_v=f(x_v)


y=x^2-2x-1\\\\a=1;\ b=-2;\ c=-1\\\\x_v=\frac{-(-2)}{2\cdot1}=\frac{2}{2}=1\\\\y_v=1^2-2\cdot1-1=1-2-1=-2\\\\Answer:(1;-2)
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3 years ago
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It looks like the shadow for the lamp only went up 8 feet so I assuming it would go up 8 feet as well for the guy
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