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Assoli18 [71]
3 years ago
10

A student spent 4/7 of an hour each evening reading a book about whales if it took the student 9 evenings to finish the book how

many hours in all did the student spend reading
5 1/7 6 1/7 5 2/7

Mathematics
1 answer:
Mumz [18]3 years ago
3 0

Answer:

5 1/7

Step-by-step explanation:

Look at the attachment

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What if you magnified the image of a cluster fly by 9 times 10 to the third power?
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Step-by-step explanation:

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Read 2 more answers
Cdef maps to jklm with the transformation (x,y) to (4x,4y) to (x-4,y-9). What is the value of ef/lm.
Elina [12.6K]

Answer:

EF / LM = 1 / 4

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, translation, dilation and rotation.

Dilation is the enlargement or reduction in the size of a figure. If a point A(x, y) is dilated by a scale factor of k, the new point is at A'(kx, ky).

Translation is the movement of a point right, left, up or down. If a point A(x, y) is translated a units left and b units down, the new point is at A'(x - a, y - b).

Translation preserves the size and shape of an object. Dilation preserves the shape but not the size.

Cdef maps to jklm with the transformation (x,y) to (4x,4y) to (x-4,y-9).

CDEF was first dilated by a scale factor of 4 to get (4x,4y) before it was translated by (x-4,y-9). Since dilation changes the size of the figure, hence JKLM would be 4 times the size of CDEF. Therefore:

LM / EF = 4

EF / LM = 1 / 4

6 0
3 years ago
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