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PtichkaEL [24]
3 years ago
14

In addition to the facts in the diagram, which statement is necessary to prove that the two triangles are congruent by the SAS c

riterion?
A.
AC = DE

B.
m∠BAC = m∠FDE

C.
BC = EF

D.
m∠CAB= m∠EDF
Mathematics
1 answer:
nasty-shy [4]3 years ago
7 0
The best answer to go with is b
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2 years ago
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Brainliest right now!!!!
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<h3>Answer:</h3>
  1. A
  2. B
<h3>Step-by-step explanation:</h3>

1. A decrease of 3.8% is equivalent to a multiplier fraction of -0.038. The only answer choice that has such a multiplier is A.

In an instance such as this, the "rate" is usually some (fractional) change in some period of time. Since the exponent must be unitless, the rate is effectively (some fraction) "per year" so that multiplying by "t" years cancels the units and results in a pure number.

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<em>Comment on the exponential</em>

If the actual change were -3.8% per year, the exponential term would look like (1 - 0.038)^t = 0.962^t. By writing it as e^(-0.038t), the decrease is effectively compounded continuously. As a result, over a year's time, the decrease is actually about 3.73%, not 3.8%.

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3 years ago
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Karolina [17]

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