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3 years ago

I need help pleaseeeeeeeee

Mathematics

1 answer:

bixtya [17]3 years ago

6 0

Answer:

The answer is C

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Perform the indicated operation to write given polynomial in standard form: (x^3+2x^2 − 3x − 1) +(4 − x − x^3)

Rzqust [24]

Answer:

$\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=2x^2-4x+3$

Step-by-step explanation:

To write any polynomial in standard form, you look at the degree of each term. You then write each term in order of degree, from highest to lowest, left to write.

To add the polynomials you need to:

Remove parentheses

$\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=x^3+2x^2-3x-1+4-x-x^3$

Group like terms

$\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=x^3-x^3+2x^2-3x-x-1+4$

Add similar elements

$\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=2x^2-3x-x-1+4\\\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=2x^2-4x-1+4\\\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=2x^2-4x+3$

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4 years ago

Hannah! look at dus deer

Zina [86]

Ok thats cool, what is it.

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3 years ago

Anita earned a 74, 85, and 84 on her first three biology exams. What is the minimum score she needs to get on the fourth test in

zzz [600]

Answer:

Step-by-step explanation:

82×4=328

328=74+85+84+x

x=328-74-85-84

x=85

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4 years ago

Town M is 282 feet below sea level. Town R is 679 feet above sea level. How much higher, in feet is Town R than M?

Genrish500 [490]

Given parameters:

Elevation of Town M = 282ft

Elevation of Town R = 679ft

Unknown:

How much higher is Town R than M = ?

Solution:

Town M lies below the sea level whereas Town R is above the sea level.

Graphically:

Town R 679ft

↑

↔↔↔ Sea level

↓

Town M 282ft

Town R is 282ft + 679ft higher than Town M = 961ft

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4 years ago

Shaul made a password that consists of one letter followed by two digits. The two digits are different. How many possible passwo

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278. I got It By Counting The Letters On Meh Keyboard As Many Times As The #'s On My Keyboard.

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3 years ago