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nordsb [41]
3 years ago
11

Help and show work plz

Mathematics
2 answers:
ad-work [718]3 years ago
6 0

Answer: RK = 4, BC = 6

Step-by-step explanation:

In a similar triangle, the ratios of corresponding sides are the same.  Thus, because of sides MK and AC, the triangles have a ratio of 6/9, or 2/3.  Thus, you can determine that 2/3(4x+2)=2x+2.

Distribute

8/3x + 4/3 = 2x + 2

Subtract 2x

2/3x + 4/3 = 2

Subtract 4/3

2/3x=2/3

Divide by 2/3

x = 1

Then, simply plug-in 1 for x to get that RK is 4 and BC is 6

<em>Hope it helps <3</em>

anyanavicka [17]3 years ago
3 0

Answer:

RK: 4 and BC: 6

Step-by-step explanation:

SImilar triangles

find unknown / know sides

Which means (2x+2)/6 = (4x+2)/9

  (X+1)/3 = (4x+2)/9

Multiply 9 to both sides

9/3 (x+1) = (4x+2)

3x+3 = 4x+2

1 = x

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3 0
3 years ago
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The formula for D, the difference in temperature between the pan and the room after t minutes is:

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D = 324\cdot e^{-0.05t}

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Then the approximate temperature of the pan after it has been away from the heat for 9 minutes is:

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