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3 years ago

Factor completely, then place the answer in the proper location on the grid. 6x2 - 3x - 30

Mathematics

1 answer:

AVprozaik [17]3 years ago

7 0

Answer:

3(2x-5)(x+2)

Step-by-step explanation:

Factor out the 3.

3(2x²-x-10)

Factor the remaining.

3(2x-5)(x+2)

(I don‘t know what grid they’re talking about.)

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At the beginning of an experiment, there are 600 grams of contaminants. Each hour, half of the contaminants are filtered out. Ho

myrzilka [38]

The amount of contaminants left is 37.5 grams, because using the decay formula, in this case, you use the equation 600(1/2)^4, getting 37.5.
Answer: 37.5

8 0

2 years ago

Divide.<br> 1/3 divide 1/2

finlep [7]

Answer: 2/3 or 0.66666666666

Step-by-step explanation:

1/3 x 2 = 2/3 or 0.66666

7 0

2 years ago

Which is true about the degree of the sum and difference of the polynomials 3x5y – 2x3y4 – 7xy3 and –8x5y + 2x3y4 + xy3?

tankabanditka [31]

Answer:

The option " The sum has degree of 6 , but the difference has a degree of 7 " is correct.

Step-by-step explanation:

Given that the sum and difference of the polynomials $3x^5y-2x^3y^4-7xy^3$ and $-8x^5y+2x^3y^4+xy^3$

<h3>Now sum the given polynomials :</h3>

$3x^5y-2x^3y^4-7xy^3+(-8x^5y+2x^3y^4+xy^3)$

$=3x^5y-2x^3y^4-7xy^3-8x^5y+2x^3y^4+xy^3$

$=-5x^5y+0-6xy^3$

$=-5x^5y-6xy^3$

Therefore $3x^5y-2x^3y^4-7xy^3+(-8x^5y+2x^3y^4+xy^3)=-5x^5y-6xy^3$

In the simplified <u>sum of the polynomials</u> $-5x^5y-6xy^3$ we have <u>the degree is 6</u>

<h3>Now difference the polynomials </h3>

$3x^5y-2x^3y^4-7xy^3-(-8x^5y+2x^3y^4+xy^3)$

$=3x^5y-2x^3y^4-7xy^3+8x^5y-2x^3y^4-xy^3$

$=11x^5y-4x^3y^4-8xy^3$

Therefore $3x^5y-2x^3y^4-7xy^3-(-8x^5y+2x^3y^4+xy^3)=11x^5y-4x^3y^4-8xy^3$

In the simplified <u>difference of polynomials</u> $11x^5y-4x^3y^4-8xy^3$ we have <u>the degree is 7</u>

Therefore the option " The sum has degree of 6 , but the difference has a degree of 7 " is correct

6 0

2 years ago

Read 2 more answers

(Ill give brainliest :) )

meriva

Answer:

Step-by-step explanation:

A.¼×6766=1691.5

B.6×6766=40,596

C.½×6766=3383

D.1×6766=6766

4 0

2 years ago

F(2)=2x^2-5 evalúate the function please

skelet666 [1.2K]

Answer:

x=3

Step-by-step explanation:

plug F(2) for x

2(2)^2-5

2^2=4

2(4)-5=x

8-5=3

7 0

3 years ago