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3 years ago

What is the factored form of the polynomial?

Mathematics

1 answer:

Firdavs [7]3 years ago

8 0

Answer:

(x-3) (x-9) or (x-9) (x-3)

Step-by-step explanation:

1) what * what=27

and what+what=-12

factors of 27: 9,3 -9,-3 1,27 -1,27

-9+-3=-12

hence -9 and -3 are our factors

(substitute -9 and -3 in place of -12)

x^2-9x-3x+27

split into two groups:

x^2-9x

(both have a gcf of x)

x(x-9)

and

-3x+27

(both have a gcf of "-3"

-3(x-9)

take the numbers OUTSIDE the parantheses and put them in a bracket:

(x-3) (x-9)

Hope this helps!

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Which one is right ?

sergey [27]

Answer:

6/10

Step-by-step explanation:

all can be reduced to 2/5, except 6/10:

2/5

8/20=2/5 (divide out 4)

12/30=2/5 (divide out 6)

but not

6/10 = 3/5!

7 0

3 years ago

There are 2.54 cm in 1 inch. they are 100 cm in 1 m, to the nearest meter, how many meters are in 474 inches

zlopas [31]

Multiply total meters by 100 to get total centimeters:

6 meters x 100 = 600 centimeters.

Now divide total centimeters by 2.554 to get total inches:

600 centimeters / 2.54 = 236.22 inches.

Rounded to the nearest inch = 236 inches.

6 0

3 years ago

A gallery has 25 paintings in its permanent collection, with display space for 10 at one time. How many different collections ca

Anastaziya [24]

You need to know in how many ways you can choose 10 out of 25 items when order does not matter. This is a combination problem.

$_{n}C_{r} = \dfrac{n!}{(n - r)!r!}$

$_{25}C_{10} = \dfrac{25!}{(25 - 10)!10!}$

$_{25}C_{10} = \dfrac{25 \times 24 \times 23 \times 22 \times 21 \times 20 \times 19 \times 18 \times 17 \times 16 \times 15!}{15! \times 10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}$

$_{25}C_{10} = \dfrac{25 \times 24 \times 23 \times 22 \times 21 
\times 20 \times 19 \times 18 \times 17 \times 16}{10 \times 9 \times 8 \times 7 \times 6 \times 5 \times 4 \times 3 
\times 2 \times 1}$

$_{25}C_{10} = \dfrac{23 \times 11 \times 20 \times 19 \times 2 \times 17}{1}$

$_{25}C_{10} = 23 \times 11 \times 20 \times 19 \times 2 \times 17$

$_{25}C_{10} = 3,268,760$

6 0

4 years ago

Read 2 more answers

The first person to answer this question and get it right will be marked as Brainiest!

Advocard [28]

Answer:

There is not enough info to draw valid conclusion

Step-by-step explanation:

Hope this helps

8 0

3 years ago

Read 2 more answers

A punch recipe that serves 24 people calls for 4 liters of lemon-lime soda, 2 pints of sherbet, and 6 cups of ice. How much of e

harkovskaia [24]

Well 18 people is 3/4 of 24 people. So for each ingredient just multiply the value by 0.75.

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5 0

3 years ago