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sweet [91]
3 years ago
11

Maths substitution y=2x-10 Y=-4x+8

Mathematics
2 answers:
joja [24]3 years ago
8 0
<span>y=2x-10
2x-10=-4x+8
6x=18
x=3
y=2*3-10=-4
</span>
Elanso [62]3 years ago
5 0
Solve for the first variable  in one of the equations , then substitute the result into the other equation...      (3,-4)?
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Record the product 8x43 using expanded form to help
ozzi
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3 years ago
Find the measure of angle A<br> please hurry!!!!!!!!!!!!
Luba_88 [7]

Answer:

A=87 gradus

Step-by-step explanation:

115/2=57,5

71/2=35,5

180-(57,5-35,5)=180-93=87

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7 0
2 years ago
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Vika [28.1K]
(m+2)(m+3)=(m+2)(m-2)\\\\m^2+3m+2m+6=m^2-4\\\\m^2-m^2+5m=-4-6\\\\5m=-10\ \ \ \ /:5\\\\m=-2
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3 years ago
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A bicycle cost $ 129.50. You pay $7.77 in sales tax. What is the tax rate?
viva [34]
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6 0
3 years ago
What is the equation for g, which is f(x) = 2x2 + 3x − 1 reflected across the y-axis? Group of answer choices g(x) = −2x2 − 3x −
Sergio [31]

Answer:

g(x) = 2x^2 - 3x - 1

Step-by-step explanation:

Given

f(x) = 2x^2 + 3x - 1

Required

Determine g(x), if f(x) is reflected across the y axis

<em>When a function (x,y) is reflected across the y axis, the new function becomes (−x,y).</em>

<em />

In other words,

g(x) =  f(-x)

Calculating f(-x)

f(-x) = 2(-x)^2 + 3(-x) - 1

f(-x) = 2x^2 - 3x - 1

Substitute g(x) for f(-x)

g(x) = 2x^2 - 3x - 1

<em>Hence;</em>

g(x) = 2x^2 - 3x - 1

7 0
3 years ago
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