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myrzilka [38]
3 years ago
5

Which decimal is equivalent to -3 1/8

Mathematics
2 answers:
schepotkina [342]3 years ago
8 0

Answer:

-3.125

Step-by-step explanation:

Thepotemich [5.8K]3 years ago
3 0

Answer: this is the correct answer -3.125

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PLEASE HELP!! Important test!! Option 1 isn't coming up so if you could try to solve others that would be great!
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Answer:

4

Step-by-step explanation:

Func 2 is -2

Func 3 is 1

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The answer is
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The area of a rectangular piece of cardboard is represented by
Liula [17]

This question is solved applying the formula of the area of the rectangle, and finding it's width. To do this, we solve a quadratic equation, and we get that the cardboard has a width of 1.5 feet.

Area of a rectangle:

The area of rectangle of length l and width w is given by:

A = wl

w(2w + 3) = 9

From this, we get that:

l = 2w + 3, A = 9

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\Delta}}{2*a}

x_{2} = \frac{-b - \sqrt{\Delta}}{2*a}

\Delta = b^{2} - 4ac

In this question:

w(2w+3) = 9

2w^2 + 3w - 9 = 0

Thus a quadratic equation with a = 2, b = 3, c = -9

Then

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w_{1} = \frac{-3 + \sqrt{81}}{2*2} = 1.5

w_{2} = \frac{-3 - \sqrt{81}}{2*2} = -3

Width is a positive measure, thus, the width of the cardboard is of 1.5 feet.

Another similar problem can be found at brainly.com/question/16995958

5 0
2 years ago
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Novosadov [1.4K]

Answer:

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Step-by-step explanation:

They both divide by it's self to get the same number.

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