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jasenka [17]
3 years ago
9

The sides of a rectangle are a number and 4 less than that same number. The perimeter is 56. Find the dimensions of the rectangl

e
Mathematics
1 answer:
mafiozo [28]3 years ago
4 0
X+x+x-4+x-4=56
4x-8=56
4x=64
x=16

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natali 33 [55]

Answer:

64

Step-by-step explanation:

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Ulleksa [173]
<h2>Options A, B and C are correct choices. :) !!</h2>

Step-by-step explanation:

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Let us see our given options one by one to find which could be combinations of volumes of bleach and water for Mael's sanitizing solution.

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C. 3 ml bleach and 0.75 liters of water.

 

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8 0
3 years ago
What is the rule for finding the vertex of a formula in Standard form? Use that rule to
worty [1.4K]

The vertex is the minimum or the maximum point of the parabola.

<em>x and f(x) represent the horizontal and the vertical coordinates of the vertex.</em>

<em />

The standard form of a parabola is

f(x) = ax^2 +bx + c

The x coordinate of the parabola is calculated using:

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The value of the x-coordinate is then plugged in, into the equation to calculate the y-coordinate, as follows:

f(\frac{b}{2a}) = a(-\frac{b}{2a})^2 + b(-\frac{b}{2a}) + c

At the end of the calculation,

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Take for instance:

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The x-coordinate of the vertex is:

x = -\frac b{2a}

x = -\frac 4{2 \times 2}

x = -\frac 44

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The y-coordinate is:

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So, the vertex of f(x) = 2x^2 + 4x - 9 is (-1,11)

See attachment for illustration of vertex of f(x) = 2x^2 + 4x - 9

Read more about vertex of parabola at:

brainly.com/question/20209326

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2 years ago
The quotient of 100 and the sum of b and 24​
GaryK [48]

Answer:

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Step-by-step explanation:

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Art [367]

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