3 years ago

Factor the polynomial. 3x^3 - 12x^2 + 27x

Mathematics

1 answer:

Andreas93 [3]3 years ago

8 0

Answer:

3x(x^2-4x+9)

Step-by-step explanation:

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Find the value of x. Round to the nearest whole number.

andrew-mc [135]

Answer:

A. 61 degrees

Step-by-step explanation:

tan x = 9/5

$tan^{-1} x=1.8$

x≈60.9

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3 years ago

The sum of the interior angle of an octagon is

ehidna [41]

Answer:

1080 degrees

Step-by-step explanation:

A regular octagon has 135 degrees per interior angle. To find the sum, add 135 for each angle. There are 8 interior angles.

8*135 = 1,080

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3 years ago

Centerview Elementary holds a canned food drive each year. This year they collected 42 cans of food. Last year they collected 21

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42-21

21

ANSWER: 21 more cans

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3 years ago

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Answer:

Step-by-step explanation 1 and 4

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3 years ago

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Suppose you have line AB on a coordinate plane located at A(-3,-4) and B(5,-4). Under a dilation centered at (9,0), line AB

masya89 [10]

Answer:

$\dfrac{1}{4}$

Step-by-step explanation:

Center of dilation: O(9,0).

Line AB with A(-3,-4) and B(5,-4) is dilated with the scale factor k and center of dilation at O to form line A'B' with A'(6,-1) and B'(8,-1).

Then

$OB'=kOB\\ \\OA'=kOA$

Since

$OB'=\sqrt{(8-9)^2+(-1-0)^2}=\sqrt{1+1}=\sqrt{2}\\ \\OB=\sqrt{(5-9)^2+(-4-0)^2}=\sqrt{16+16}=4\sqrt{2},$

then

$\sqrt{2}=k\cdot 4\sqrt{2}\\ \\k=\dfrac{1}{4}$

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3 years ago