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jonny [76]
2 years ago
15

Match the equation with its corresponding solution for x.

Mathematics
1 answer:
Fudgin [204]2 years ago
4 0

To solve for x, you need to isolate/get the variable "x" by itself in the equation:

3x - 3(x + 1) = 3     Distribute/multiply -3 into (x + 1)

3x + (-3)x + (-3)1 = 3

3x - 3x + 1 = 3

1 = 3

Your answer is no solution because the variable "x" is canceled out and 1 ≠ 3

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the length of a rectangular building is 6 feet less than 3 times t he width. The perimeter is 120 feet. Find the width and the l
garri49 [273]
Call the width x.  Note that the length is 3x-6.  We know that double the width plus double the length is 120, so we write an equation:

2(x)+2(3x-6)=120
2x+6x-12=120
8x-12=120
8x=132
x=16.5
If x is 16.5, the width is 16.5, and the length is 3 \cdot 16.5 - 6 = 43.5.
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3 years ago
If a polynomial function f(x) has roots 3 and square root of 7 what must also be a root of f(x)?
yuradex [85]
Whenever you have a root of sqrt #, you must have the matching - (or positive).
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State the domain of the relation R{(-3,3), (1,1), (0,2),(1,-4),(5,-1)} and then State the range of the relation R={(-3,3), (1,1)
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The range is the Y value and the Domain is the X value.
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Perimeter is a square clock is 16 6/9 inches. Perimeter of a rectangular clock is 16 16/18 inches. Write an inequality comparing
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<span>16 6/9 inches < 16 16/18 inches or Perimeter of square clock < Perimeter of rectangular clock First we would put convert the perimeter fractions into equivalent terms. So for the square clock, 16 6/9 inches becomes 16 12/18 inches (multiplying the fraction by 2/2). Now it is obvious that that the square clock at 16 12/18 inches has a smaller perimeter than the rectangular clock with a perimeter of 16 16/18 inches.</span>
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The annual revenue of Amazon.com rose from approximately $10.7 billion in 2006 to $34.2 billion in 2010. Use this information to
Sati [7]
1) Linear model

R(t) = y = at + b

Where t is the year - 2000 (year since 2000)

For year 2006, t = 6; for year 2010, t = 10

Then:

1) 10.7 = a*6 + b
2) 34.2 = a*10 + b

Subtract (1) from (2)

34.2 - 10.7 = 10a -6a

23.5 = 4a

a = 23.5/4 = 5.875

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2) Exponential model

R(t) = A[B]^t

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Divide (2) by (1)

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Then, the model is R(t) = 1.8725{1.3371]^t
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