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umka21 [38]
2 years ago
5

In arithmetic what variables look like

Mathematics
2 answers:
Sati [7]2 years ago
7 0
Variables are used in algebra and other branches of mathematis.

They are represented by letters. Usually ( but not necesserally)  the letters at the end of the alphabet  like x,y and z.
ad-work [718]2 years ago
4 0

Answer:

Step-by-step explanation:

In Arithmetic Operations <u><em>variables </em></u>are used to represent a yet unknown value that is needed for the final result. <u><em>Variables</em></u> are used in countless situations and are represented by letters or symbols. These letters and symbols are usually taken from the English Alphabet or the Greek Alphabet and used as variables. Since they are unknown until they are replaced by a value any symbol can be used.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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Simplify the following expression 4w x 3w x 2y x 2y
Anestetic [448]

Answer:

48w^2y^2

I used a simplify calculator I hope this is correct.

4 0
3 years ago
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If CD=18, find the value of EB.
aliina [53]

Step-by-step explanation:

Chord AB and Chord CD are equidistant from the center of the circle.

\therefore \: chord \: AB \cong chord \:  CD \\  \\  \therefore \:  \frac{1}{2} \:  \: AB \cong \frac{1}{2} \: \:  CD  \\  \\ \therefore \: EB = \frac{1}{2} \:  \times 18\\  \\  \huge \purple{ \boxed{\therefore \: EB =9}}

5 0
2 years ago
How to solve x/3 + 4 = -2
r-ruslan [8.4K]

Answer:

x=−18

Step-by-step explanation:

Let's solve your equation step-by-step.

x

3

+4=−2

Step 1: Simplify both sides of the equation.

1

3

x+4=−2

Step 2: Subtract 4 from both sides.

1

3

x+4−4=−2−4

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x=−6

Step 3: Multiply both sides by 3.

3*(

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5 0
2 years ago
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what is the polynomial function of lowest degree with leading coefficient of 1 and roots 2 and 1 + square root2
Marta_Voda [28]
If the roots to such a polynomial are 2 and 1+\sqrt2, then we can write it as

(x-2)(x-(1+\sqrt2))

courtesy of the fundamental theorem of algebra. Now expanding yields

(x-2)(x-1-\sqrt2)=x^2-2x-(1+\sqrt2)x+2(1+\sqrt2)=x^2-(3+\sqrt2)x+2+2\sqrt2

which would be the correct answer, but clearly this option is not listed. Which is silly, because none of the offered solutions are *the* polynomial of lowest degree and leading coefficient 1.

So this makes me think you're expected to increase the multiplicity of one of the given roots, or you're expected to pull another root out of thin air. Judging by the choices, I think it's the latter, and that you're somehow supposed to know to use 1-\sqrt2 as a root. In this case, that would make our polynomial

(x-2)(x-(1+\sqrt2))(x-(1-\sqrt2))=x^3-4x^2+3x+2

so that the answer is (probably) the third choice.

Whoever originally wrote this question should reevaluate their word choice...
5 0
2 years ago
Dorji thought of a number. He first multiplied the number by 3 and then subtracted 12
jeyben [28]

Answer

The answer is 24

Step-by-step explanation

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  • 72 - 12 = 60
  • 60/6 = 10
  • 10 - 4 = 6
6 0
2 years ago
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