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Lostsunrise [7]
3 years ago
10

Which algebraic expressions are polynomials

Mathematics
1 answer:
kondaur [170]3 years ago
4 0

Answer:

yep

Step-by-step explanation:

Polynomials are algebraic expressions that are created by combining numbers and variables using arithmetic operations such as addition, subtraction, multiplication, division, and exponentiation. You can create a polynomial by adding or subtracting terms.

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Solve the following system of equations. With multiplication <br> 4x– 3y = -11<br> - 7x-8y= 6
Aliun [14]

4x - 3y = -11

-7x - 8y = 6

We need to cancel out one of the variables so let's multiply the first equation by 8 and the second by 3 and aim to cancel y.

32x - 24y = -88

-21x - 24y = 18

Now we subtract,

53x = -106

x = -2

3y = 4x + 11 = 4(-2) + 11 = 3

y = 1

Answer: (x,y)=(-2,1)

Check:

4(-2) -3(1) = -8 - 3 = -11, good

-7(-2) - 8(1) = 14 - 8 = 6, good

5 0
3 years ago
Is it true that a line with slope 1 always passes through the origin? Explain your reasoning.
elena55 [62]

Well, yes and no.

Yes, because the straight line needs to pass through a number greater than 0, and 1 is obviously greater than 0.

However, y = x + 1 is not the same as y = x.

hope this helps.! let me know if it's in any way confusing..

I'd be happy to help!

5 0
3 years ago
NEED ASAP PLEASE HELP ME!!!!<br><br>And explain to ok, But please help
kkurt [141]

Asheville had about 20 more inches of rain and it rained for about 40 more days than Wichita

subtract both rainfall and days for Wichita from the same quantities in Asheville

47.71 - 28.61 = 19.1 , about 20 inches

124 - 85 = 39, about 40

both quantities rounded to the nearest 10




3 0
3 years ago
Read 2 more answers
** I NEED TO GET THIS RIGHT IM DOING TEST CORRECTION**
valina [46]

Answer: ~27.5

Step-by-step explanation:

I don't know about all the geometry terms, but since a line is 180°, and SE makes 1 right angle (90°), the other side is also 90° (180-90=90).

This means you have a right triangle with sides 15 and 23 and unknown hypotenuse AS.

Pythagorean Theorem: a^2 + b^2 = c^2

(15^2) + (23^2) = AS^2

sqrt( 225 + 529 ) = AS

AS = 27.459

8 0
3 years ago
Solve for x:4(2x-1)=2x+35
Katyanochek1 [597]
8x-4=2x+35
8x-2x=35+4
6x=39
X=39/6
6 0
3 years ago
Read 2 more answers
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