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4 years ago

What is the product of an integer of and -1?

Mathematics

1 answer:

Alchen [17]4 years ago

7 0

Answer:

-1

Step-by-step explanation:

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A man and a woman agree to meet at a cafe about noon. If the man arrives at a time uniformly distributed between 11:40 and 12:10

kompoz [17]

Answer:

0.3888

Step-by-step explanation:

To solve the exercise we need a neutral time, so we define at 12:00 as time 0.

If the man arrives in a uniformly distributed time between 11:40 and 12:10, the time is distributed from -20 to 10.

If the woman arrives in a time evenly distributed between 11:45 and 12:20, the time is distributed from -15 to 20.

Assuming that each one arrives at 12: X and 12: Y for men and women, then the space of our time is defined as

Man [-20,10]

Woman [-15,20]

So,

$f_x(x)=\frac{1}{10-(-20)}=\frac{1}{30}\\f_y(y)=\frac{1}{20-(-15)}=\frac{1}{35}$

Then,

$f_{xy}(x,y)=f_x(x)f_y(y)=\frac{1}{30} \frac{1}{35} = \frac{1}{1050}$

The probability of finding an arrival less than 5 minutes is

$P(|X-Y|\leq 5) = \int\limit^20_{-15} \int\limit^{x+5}_{x-5} f(x,y)dydx$

$P(|X-Y|\leq 5)= \frac{1}{1050}\int\limit^{20}_{-15} y|^{x+5}_{x-5}dx$

$P(|X-Y|\leq 5)= \frac{35*10}{900}=0.3888$

6 0

3 years ago

Whats The CORRECT answer ?

KiRa [710]

Answer:

(B) 25%

Step-by-step explanation:

40 - 30 = 10

A $10 markdown rate was placed on the trousers.

10/40 = 1/4

That means a 1/4, or 0.25 (25%), markdown rate was placed on the trousers.

Hope it helps (●'◡'●)

6 0

3 years ago

a rectangular fish pond fish pond is 21 square feet in area. if the owner can surround the pond with a 20-foot fence, what are t

Ksivusya [100]

The perimeter is 20 feet, half the perimeter Would be 10 feet.

Need 2 numbers when added together equal 10 and when multiplied together equal the area of 21.

3 and 7 The pond is 3 feet by 7 feet.

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3 years ago

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Section J in an arena has 20 rows each row has 15 seats all tickets cost $18 each people if all the seats are sold how much mone

Novosadov [1.4K]

First do 20×15, then the answer multiply by 18.

5 0

4 years ago

Read 2 more answers

Question#3<br> will give brainliest!

11111nata11111 [884]

Answer:

I think the answer is 2.56 = x

Step-by-step explanation:

pls like, vote, and give brainliest!

7 0

2 years ago