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vovangra [49]
3 years ago
13

The work of a student to find the dimensions of a rectangle of area 8 + 16x and width 4 is shown below:

Mathematics
1 answer:
Jobisdone [24]3 years ago
6 0
Factor 8x+16

It would be 4(2+4x)

So the student made a mistake in step 2

It should be 4(2)+4(4x)

Answer C
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Answer:

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Step-by-step explanation:

Angle DEB = 52 because triangles' angles must add up to 180. Angle ADB is 30 because it is complementary to angle BDE. Angle CBE is 52 because angle BEC is complementary to BED which is 52 degrees to BEC is 38 degrees. since the angles add up to 180, and C is 90, CBE is 52. Finally, BEC is 38 because it is complementary to BED.

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