3 years ago

I need help i am taking a test i need help

Mathematics

1 answer:

Pachacha [2.7K]3 years ago

4 0

Answer:

91 degrees

Step-by-step explanation:

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What is the length of DE

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DE = 20units

Step-by-step explanation:

In Δ ABC,

angle A is congruent to angle B.... (given)

therefore, ΔABC is an isoceles triangle.

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therefore, CB = 4 units

In ΔCDE,

angle D is congruent to angle E.... (given)

therefore, ΔCDE is an isoceles triangle.

therefore, CD = CE

therefore, CD = 8 units

ΔCDE ~ ΔCBA

therefore,

$\frac{cd}{cb} = \frac{ce}{ca} = \frac{de}{ab} \\ therefore \: \frac{8}{4} = \frac{8}{4} = \frac{de}{10 } \\ therefore \\ \frac{2}{1 } = \frac{de}{10 } \\ de \: = 2 \times 10 = 20units$

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In New York a crowed subway has 375 passengers distributed between 5 cars. What is the unit rate for each subway car?

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Step-by-step explanation:

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