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sergij07 [2.7K]
3 years ago
9

PLEASE HELP! Triangle A’B’C’ is a dilation of triangle ABC.

Mathematics
2 answers:
sergejj [24]3 years ago
6 0
The scale factor is (x2)!

9×2 = 18
4 1/2 × 2 = 9
hram777 [196]3 years ago
3 0

Answer:   0.5

Step-by-step explanation:

We know that the scale factor for dilation is the ratio of the side-length of the image to the side-length of the pre-image.

From the given figure, In Pre-image ΔABC , we have  AC=18              

In Pre-image ΔA'B'C', we have A'C'=9          

Now, the scale factor will be :_

k=\dfrac{A'C'}{AC}=\dfrac{9}{18}=\dfrac{1}{2}=0.5

Now, the scale factor for this dilation = 0.5

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solong [7]

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We know that cosine function oscillates between -1 and 1 that is minimum value of cosine is -1 and maximum value is 1.

We also know that \cos(0)=1 and after period of cosine is 2\pi. This means after every 2\pi, we will get to 1.

So maximum of cosine is 2\pi n, where n is an integer.

Therefore, our required formula is 2\pi n, where, n=0,\pm 1,\pm 2,\pm3,...

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3 years ago
Which two operations are needed to write the expression that represents “five less than the quotient of a number and three”?
harina [27]
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8 0
3 years ago
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frosja888 [35]

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Step-by-step explanation:

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3 years ago
Multiply.Express your answer in standard form.(3 points)(x² -4x + 3)(-3x²+ 7x –1)
bija089 [108]

Answer:

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Step-by-step explanation:

1) distribute x² into (-3x² + 7x - 1) to get: -3x^{4} + 7x³ - x²

2) distribute -4x into (-3x² + 7x - 1) to get: 12x³ - 28x + 4x

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4) combine all the answers together into one equation:

-3x^{4} + 7x³ - x² + 12x³ - 28x² + 4x - 9x² + 21x - 3

5) combine like terms:

7x³ + 12x³ = 19x³

-x² + -28x² + -9x² = -38x²

4x + 21x = 25x

6) combine answers together into one equation:

-3x^{4} + 19x³ - 38x² + 25x - 3

3 0
3 years ago
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Vlad1618 [11]

Answer:

B.  51.7699^2

Step-by-step explanation:

Last 2 wrong because it is positive.

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3 0
1 year ago
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