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sasho [114]
3 years ago
5

The rectangle is the image after a dilation with the center of dilation at the origin of rectangle ABCD. The pre-image of A prim

e, point A, has coordinates of (–4, 3.2). What is the scale factor of the dilation and what are the coordinates of point C? On a coordinate plane, rectangle A prime B prime C prime D prime has points (negative 10, 8), (negative 6, 8), (negative 6, negative 2), (negative 10, negative 2). Point A is at (negative 4, 3.2). The scale factor is 2.5 and the coordinates of point C are (–2.4, –0.8). The scale factor is 0.4 and the coordinates of point C are (–2.4, –0.8). The scale factor is 2.5 and the coordinates of point C are (–15, 5). The scale factor is 0.4 and the coordinates of point C are (–15, 5).
Mathematics
2 answers:
Zina [86]3 years ago
6 0

Answer:

the answer is A on Edg

Step-by-step explanation:

i just took the test and it was right

lidiya [134]3 years ago
5 0

9514 1404 393

Answer:

  (a)  The scale factor is 2.5 and the coordinates of point C are (–2.4, –0.8)

Step-by-step explanation:

We are given ...

  A(-4, 3.2) and A'(-10, 8)

  C'( -6, -2)

__

The scale factor is the ratio of corresponding coordinates:

  A'x/Ax = -10/-4 = 2.5 . . . scale factor

Then the coordinates of C will be ...

  C' = 2.5C

  C = C'/2.5 = (-6, -2)/2.5

  C = (-2.4, -0.8)

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This means that, for the first place in the duet, the probability of randomly selecting a boy is equal to the quotient between the number of boys and the total number of students, this is:

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For the second member of the duet we compute the probability in the same way, but this time there is one student less and one boy less (because one was already selected).

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The joint probability (so both of these events happen together) is just the product of the individual probabilities, this will give:

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