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Zielflug [23.3K]
3 years ago
6

Evaluate x3 - 3y when x = -3 and y = 4. 0 -39 о -15 o 15 039 ООО DONE

Mathematics
2 answers:
Anna35 [415]3 years ago
7 0

Answer:

-21

Step-by-step explanation:

3x - 3y

x = -3

y = 4

Substitute the variables x and y in the equation with the numbers they represent.

3(-3) - 3(4)

-9 - 12

-21

None of the answers you have proposed are correct.

maksim [4K]3 years ago
3 0

Answer:

-39

Step-by-step explanation:

x^3 - 3y

Let x = -3 and y = 4

(-3)^3 -3(4)

-27 - 12

-39  

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Answer: T'(18,36)

Step-by-step explanation:

For this exercise it is important to know the definition of "Dilation".

 A Dilation is defined as a transformation in which the Image (The figure obtained after the transformation) and the Pre-Image (The original figure before the transformation) have the same shape but have different sizes.

If the Dilation is centered at the origin, and knowing the scale factor of \frac{9}{5}, you need to multiply each coordinate of the point T by the scale factor in order to find the coordinates of the Image T'.

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You get that the coordinates of the Image T' are the shown below:

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