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Masteriza [31]
3 years ago
5

The probability that a plane departs on time at a certain airport is .87 The probability that a plane arrives on time given it d

eparted on time is .93 Find the probability that a plane departed and arrived in time. Write answer to four decimals. 3 points
Mathematics
1 answer:
sleet_krkn [62]3 years ago
7 0

Answer:

0.9355

Step-by-step explanation:

What we will use here is conditional probability formula.

let A be the event that the plane departs on time

and B be the event that it arrives on time

P(A) = 0.87

P(B|A) = 0.93

P(B) = ?

P(A n B) = ?

Mathematically;

P(B|A) = P(B nA)/P(A)

0.93 = 0.87/P(A)

P(A) = 0.87/0.93

P(A) = 0.935483870967742

which is 0.9355 to four decimal places

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jeka57 [31]

I think it is 174. I could be wrong.

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3 years ago
If the lines are parallel with angle a measuring 5x + 8 and angle b measuring 8x - 7, the measure of angle a would be ___ degree
Mandarinka [93]

The value of angle a will be 33°.

It should be noted that when we've parallel lines, then the angles will be equal. In this case, the value of angle a will be equal to that of angle b and this will be:

5x + 8 = 8x - 7.

Collect like terms .

8x - 5x = 8 + 7

3x = 15

Divide both side by 3

3x/3 = 15/3

x = 5

Therefore, the value of angle a will be:

= 5x + 8

= 5(5) + 8

= 25° + 8°

= 33°

The measure of angle a is 33°.

Read related link on:

brainly.com/question/24576134

7 0
3 years ago
A newborn baby had about 26,000,000,000 cells. An adult has about 4.94 times 10 to the 13 power cells. How many times as many ce
Tom [10]
2.6 • 10^10 = 26,000,000,000
4.94 • 10^13 = 49,400,000,000,000

49,400,000,000,000/26,000,000,000= 1900

And adult had 1900 times more cells than a newborn. Or if you want to put it in scientific notation it would be 1.9 • 10^3
4 0
3 years ago
Twenty-two is what percent of 55<br><br> A) 22%<br> B) 40%<br> C) 50%<br> D) 250%
Mashutka [201]

Answer:

twenty two percent of 55 would be the answer B.40 I think.

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2 years ago
Question 7:
padilas [110]

The answer is:

Nth term=200n-238

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3 years ago
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