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8_murik_8 [283]
3 years ago
7

A plane travels at a constant speed. It takes 7 hours to travel 3,780 miles. What is the plane’s speed in miles per hour.

Mathematics
1 answer:
tia_tia [17]3 years ago
4 0

Answer:

540 mph

Step-by-step explanation:

3780/7 = 540 mph

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P(A) = 20%. P(B) = 50%. P(BIA) = P(B). What is P(A and B)?
8_murik_8 [283]

Answer:

P(A and B) = 0.1 = 10%

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, we have that:

P(A) = 0.2, P(B|A) = 0.5

What is P(A and B)?

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

P(A \cap B) = P(B|A)*P(A) = 0.5*0.2 = 0.1

P(A and B) = 0.1 = 10%

8 0
3 years ago
What are the zeros of the function f(x) = x4 − 4x2 − 5?
Gekata [30.6K]

Answer:

A graph shows zeros to be ±3. Factoring those out leaves the quadratic

 (x-2)² +1

which has complex roots 2±i.

The function has roots -3, 3, 2-i, 2+i.

Step-by-step explanation:

4 0
3 years ago
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Answer:

90+3/10 over 100

Step-by-step explanation:

Hope this helped you

4 0
4 years ago
Tiana can clear a football field of debris in 3 hours. Jacob can clear the same field in 2 hours. If they decide to clear the fi
algol13
The answer is D. 5 hours, due to the fact that there football field together, so adding there times they had done the football field individually,                            Tiana,3 hours, and Jacob 2 hours                                                                               2h+3h=5hours. hope i helped.
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4 years ago
Order from least to greatest.<br> 1/3 ,5/4, 0.85
Sav [38]

Answer:

I believe it should be; 1/3, 0.85, 5/4

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4 years ago
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