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3 years ago

What is the factored for of the polynomial x^2 - 12x + 27

Mathematics

1 answer:

vodomira [7]3 years ago

8 0

Answer:

(x - 3)(x - 9)

Step-by-step explanation:

Consider the factors of the constant term (+ 27) which sum to give the coefficient of the x- term (- 12)

The factors are - 3 and - 9, hence

x² - 12x + 27 = (x - 3)(x - 9 )

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Add 1/6+3/4+2/3. Simplify the answer and write it as a mixed number, if possible.

jarptica [38.1K]

Find the lowest common denominator for the 3 fractions. It is 12.
Rewrite each fraction with the denominator 12.
1/6 = 2/12
3/4 = 9/12
2/3 = 8/12
2/12 + 9/12 + 8/12 = 19/12
This can be written as the mixed number 1 7/12.
The answer is D) 1 7/12

3 0

3 years ago

Read 2 more answers

Please help thank you :)

kvasek [131]

Answer:

d. thats a tough one but its D.

Step-by-step explanation:

4 0

4 years ago

(A) In some cases, neither of the two equations in the system will contain a variable with a coefficient of 1, so we must take a

Effectus [21]

Answer:

C = 17/7 or 2 3/7

D = -4/7

Step-by-step explanation:

3C+4D=5

2C+5D=2

2C = 2 - 5D

C = 1 - 2.5D

3(1 - 2.5D) + 4D = 5

3 - 7.5D + 4D = 5

-3.5D = 2

D = -4/7

C = 1 - 2.5(-4/7)

C = 1 + 10/7 = 17/7

4 0

3 years ago

PLSSS HELPPPP<br> 15 coins of dimes and nickels make up $1.00. How many dimes and nickels are there?

Sidana [21]

5 dimes 10 nickels is the answer

5 0

2 years ago

What is Z in the rhombus?

weeeeeb [17]

Answer: 27°

Step-by-step explanation:

The easiest way to find the measure of angle Z is to know that <em>in a rhombus, the diagonals are perpendicular bisectors of each other. </em>This means that all the four angles in the center are 90°.

Since we know that all angles in a triangle add up to 180°, we can set the sum of z, 63, and 90 to be 180 and solve for z.

$z+63+90=180\\z+153=180\\z=27$

Hence, z is 27°.

4 0

2 years ago