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snow_lady [41]
3 years ago
10

Someone please solve for angle B

Mathematics
1 answer:
qaws [65]3 years ago
5 0

Answer:

<B=45°

Step-by-step explanation:

<A=<B (alternate angles)

5x-15=2x+21

5x-2x=21+15

3x=36

Dividing both sides by 3

x=12

Now

<A=5(12)-15

=60-15

=45°

<B=2(12)+21

=24+21

=45°

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The perimeter of an equalatrial triangle is 60 cm find its area
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Answer:

173.21cm^2

Step-by-step explanation:

A=\frac{\sqrt{3} }{4} a^2\\P=3a\\

Solve for A

A=\sqrt{3} \frac{P^2}{36} \\=\sqrt{3} *\frac{60^2}{36} \\=173.21cm^2

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According to exit polling from the 2014 U.S. midterm elections, 36% of voters had a household income less than $50,000, while 64
Veseljchak [2.6K]

Answer:

0.6946 = 69.46% probability that a randomly selected Republican voter from the exit poll is from a household that makes at least $50,000.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Republican

Event B: From a household that makes at least $50,000.

Probability of Republican:

43% of 36%(makes less than $50,000).

55% of 64%(makes more than $50,000).

So

P(A) = 0.43*0.36 + 0.55*0.64 = 0.5068

Republican and from a household that makes at least $50,000.

55% of 64%. So

P(A \cap B) = 0.55*0.64 = 0.352

What is the probability that a randomly selected Republican voter from the exit poll is from a household that makes at least $50,000?

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.352}{0.5068} = 0.6946

0.6946 = 69.46% probability that a randomly selected Republican voter from the exit poll is from a household that makes at least $50,000.

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3 years ago
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just olya [345]
The answer is 5 you’re welcome
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3 years ago
Please help I'll rate 5 stars​
a_sh-v [17]

Answer:

The answer would be the 3rd option. 4^21/5^6.

Step-by-step explanation:

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