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3 years ago

A rectangle with the length of 1/5 yard and the width of 2/3 yards

Mathematics

1 answer:

suter [353]3 years ago

4 0

Answer:

Yeah she is right but its kinda hard to know wahat u want

Step-by-step explanation:

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AB= Round your answer to the nearest hundredth. 20

Ad libitum [116K]

Answer:

Please go more into depth with this question

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3 years ago

The midpoint of a line with endpoints (8, -2) and (4, -6) is:

Lynna [10]

We have ( 8 + 4 )/ 2 = 12/2 = 6;
(-2 - 6 ) / 2 = -8 / 2 = -4;
The midpoint is (6,-4);

4 0

3 years ago

Changes in airport procedures require considerable planning. Arrival rates of aircrft are important factors that muct be taken i

Irina18 [472]

Answer:

a) 0.1558

b) 0.7983

c) 0.1478

Step-by-step explanation:

If we suppose that small aircraft arrive at the airport according to a Poisson process at the rate of 5.5 per hour and if X is the random variable that measures the number of arrivals in one hour, then the probability of k arrivals in one hour is given by:

$\bf P(X=k)=\displaystyle\frac{(5.5)^ke^{-5.5}}{k!}$

(a) What is the probability that exactly 4 small aircraft arrive during a 1-hour period?

$\bf P(X=4)=\displaystyle\frac{(5.5)^4e^{-5.5}}{4!}=0.1558$

(b) What is the probability that at least 4 arrive during a 1-hour period?

$\bf P(X\geq4)=1-P(X$

(c) If we define a working day as 12 hours, what is the probability that at least 75 small aircraft arrive during a working day?

If we redefine the time interval as 12 hours instead of one hour, then the rate changes from 5.5 per hour to 12*5.5 = 66 per working day, and the pdf is now

$\bf P(X=k)=\displaystyle\frac{(66)^ke^{-66}}{k!}$

and we want P(X ≥ 75) = 1-P(X<75). But

$\bf P(X$

hence

P(X ≥ 75) = 1-0.852 = 0.1478

7 0

3 years ago

Raul's family is buying a house on a an odd-shaped lot. The lengths of three of the sides are given by the expressions shown. Th

Liono4ka [1.6K]

If the perimeter is 13y-5, then it should be equal to all of these sides added together. So, let’s add all of the sides we already know up:

5y-4 + y + 3y+1 = 9y-3.

Now set this equal to the perimeter we already know:

9y-3 = 13y-5. Subtract 9y from both sides.
-3 = 4y-5. Add 3 to both sides.
4y-2.

Now we have the value of 4y-2. Since we know that the last two sides are completely the same, then we can divide this expression by 2.

Therefore, the remaining side is 2y-1.

7 0

3 years ago

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-8=-(x+4) know the answer?

expeople1 [14]

X=4...................

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3 years ago

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