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3 years ago

In this figure, BAE = DEA. Which statement is true by CPCTC?

Mathematics

2 answers:

nlexa [21]3 years ago

6 0

Answer:

third one.

Step-by-step explanation:

Novay_Z [31]3 years ago

4 0

Answer: ∠BAF≅∠DEF

Step-by-step explanation:

In the given figure triangle BAE is congruent to triangle DEA i.e. ΔBAE ≅ ΔDEA.

We know that if two triangles are congruent then their corresponding angles are congruent.

Since, ΔBAE ≅ ΔDEA, the by CPCTC [congruent parts of congruent triangles are congruent]

∠BAE≅∠DEA

Since F is a point on AE

So, ∠BAE≅∠DEA

⇒ ∠BAF≅∠DEF

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3 years ago

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yKpoI14uk [10]

Answer:

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Step-by-step explanation:

For each oil drill, there are only two possible outcomes. Either there is a strike, or there is not. The probability that oil is striken in a trial is independent of other trials. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

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This means that $p = 0.2$

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3 years ago