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Sergeeva-Olga [200]
3 years ago
8

On a coordinate plane, point A is located at (7, 4), and point B is located at (-8, 4). What is the distance between the two poi

nts?
Mathematics
2 answers:
seropon [69]3 years ago
6 0

Answer:

15

Step-by-step explanation:

The distance formula is:

d=\sqrt{(x_{2}-x_{1)^{2}-(y_{2}+y_{1)^{2}  }

Given the problem, you must do (-8-7) squared plus (4-4) squared. The result of that is 225, and the square root of 225 is 15.

PSYCHO15rus [73]3 years ago
4 0

Answer:

Using Pythagorean Theorem, the distance between the two points is 15 units

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Of all the people applying for a certain job 75% are qualified and 25% are not. The personnel manager claims that she approves q
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Answer:

The probability is: 0.8889.

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: Approved

Event B: Qualified

Probability of a person being approved:

80% of 75%(qualified)

30% of 25%(not qualified). So

P(A) = 0.8*0.75 + 0.3*0.25 = 0.675

Probability of a person being approved and being qualified:

80% of 75%, so:

P(A \cap B) = 0.8*0.75

Find the probability that a person is qualified if he or she was approved by the manager.

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.8*0.75}{0.675} = 0.8889

The probability is: 0.8889.

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3 years ago
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andrew11 [14]

Answer:

16

Step-by-step explanation:

Also so you never gotta ask again use a website called wolframalpha it helped me    

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Monthly amount, M = $102×4 = $408.

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Amount Marcus paid

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Hence, this is the required solution.

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