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Anastaziya [24]
3 years ago
5

Which of the following is a polynomial?

Mathematics
1 answer:
Makovka662 [10]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Terms are separated by addition and subtraction symbols.

Polynomials consist of terms that are constant and/or variable. The variable terms must have 0 or positive exponents. Polynomials will not consist of division of variable expressions.

Examples of polynomials:

5

5x

6-x

24x^9-x

Examples of non-polynomials:

\sqrt{x}

\frac{x+2}{x-4}

In general a polynomial when written in standard form should be comparable to:

a_nx^n+a_{n-1}x^{n-1}+\cdots a_3x^3+a_2x^2+a_1x+a_0

where the a's could be zero and all the exponents,n, are positive or 0.

D is comparable since all of these are 0 except x_4 which is 1 and x_0 which is -2.

Also the other choices have either division by variable expressions and/or negative exponents on variables.

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does anyone know how to do he first question? I need steps on how to do it ill give brainlist if you've explained it real good.
kogti [31]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
(18 + 4i) + (-11 + 23i) =<br> Express your answer in the form (a + bi).
Andru [333]

Answer:

7+27i

Step-by-step explanation:

(18+4i)+(-11+23i)

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8 0
3 years ago
−34(8x+12)=3(x−3) <br> What does x equal?<br><br> Can someone help me solve this ASAP?!?!
IrinaVladis [17]

Answer:

x= −399 /75

Explanation:

Step 1:

−34(8x+12)=3(x−3)

(−34)(8x)+(−34)(12)=(3)(x)+(3)(−3)(Distribute)

−272x+−408=3x+−9

−272x−408=3x−9

Step 2:

−272x−408−3x=3x−9−3x

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Step 3:

−275x−408+408=−9+408

−275x=399

Step 4:

−275x

−275

=

399

−275

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18 is the answer 6x3
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2 years ago
A rectangular solid has sides of 6 cm, 8 cm, and 10 cm. What is its surface area
Ipatiy [6.2K]

A=bwh

(6)(8)(10)

=480

480cm^3 is the surface area


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