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WARRIOR [948]
3 years ago
7

3x^2-7x+6this is using F.O.I.L. method ​

Mathematics
1 answer:
matrenka [14]3 years ago
7 0

Answer:

3x^2-7x+6

3(x^2 - 7x) + 6

Step-by-step explanation:

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The product of the sum of a and b and their difference.
Alchen [17]

Step-by-step explanation:

The product of the sum of a and b and their difference:

(a + b)(a - b) = a² - b²

Proof:

L = (a + b)(a - b)     <em>use FOIL</em>

L = (a)(a) + (a)(-b) + (b)(a) + (b)(-b)

L = a² - ab + ab - b²         <em>combine like terms</em>

L = a² - b² + (-ab + ab)

L = a² - b²

R = a² - b²

L = R

7 0
4 years ago
In art class, Kim is mixing paint. The paint mixture is 3 parts yellow and 5 parts blue. What percent of the paint is yellow? Qu
AlekseyPX
Altogether there are 8 parts.  Thus, the part that is yellow is 3/8, or 37.5%
7 0
3 years ago
NEED HELP ASAP, WILL GIVE BRAINLIEST
Stella [2.4K]

Given:

The equation of circle is

(x+3)^2+y^2=9

To find:

The polar form of given circle.

Solution:

We have,

(x+3)^2+y^2=9

x^2+2(x)(3)+(3)^2+y^2=9        [\because (a+b)^2=a^2+2ab+b^2]

(x^2+y^2)+6x+9=9

Subtracting 9 from both sides, we get

(x^2+y^2)+6x=0

We know that, x^2+y^2=r^2 and x=r\cos \theta.

r^2+6(r\cos \theta)=0

r(r+6\cos \theta)=0

r=0 and r+6\cos \theta=0

We know that, r is radius it cannot be 0. So,

r+6\cos \theta=0

r=-6\cos \theta

Therefore, the correct option is A.

4 0
3 years ago
The ratio of white marbles to black marbles in a jar is 4:9.
netineya [11]
For every 4 white marables there are 9 black marables in the jar
3 0
3 years ago
Read 2 more answers
These ones always confuse me.
MissTica
You just puts them in the order on the line
5 0
3 years ago
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