All categories

4 years ago

Write the inverse of this relation. { (-5, 7), (-6, -8), (1, -2), (10, 3) } please help

Mathematics

1 answer:

vivado [14]4 years ago

4 0

(7,-5) (-8,-6) (-2,1) (3,10)

You might be interested in

A student wants to report on the number of books her friends read each week. The collected data are below:

makvit [3.9K]

Mean, or average.

The mean is 5.625

5 0

4 years ago

I will give brainilist to the first person who wants to do my delta math

pochemuha

What's ur username lol

5 0

3 years ago

What is 432*80? Show your work by multiplying with zeros

Dima020 [189]

Answer:

in the steps

Step-by-step explanation:

do 432*8 then just add a 0

3 0

3 years ago

Read 2 more answers

A rat is trapped in a maze. Initially he has to choose one of two directions. If he goes to the right, then he will wander aroun

Brut [27]

Answer:

The expected number of minutes the rat will be trapped in the maze is 21 minutes.

Step-by-step explanation:

The rat has two directions to leave the maze.

The probability of selecting any of the two directions is, $\frac{1}{2}$ .

If the rat selects the right direction, the rat will return to the starting point after 3 minutes.

If the rat selects the left direction then the rat will leave the maze with probability $\frac{1}{3}$ after 2 minutes. And with probability $\frac{2}{3}$ the rat will return to the starting point after 5 minutes of wandering.

Let X = number of minutes the rat will be trapped in the maze.

Compute the expected value of X as follows:

$E(X)=[(3+E(X)\times\frac{1}{2} ]+[2\times\frac{1}{6} ]+[(5+E(X)\times\frac{2}{6} ]\\E(X)=\frac{3}{2} +\frac{E(X)}{2}+\frac{1}{3}+\frac{5}{3} +\frac{E(X)}{3} \\E(X)-\frac{E(X)}{2}-\frac{E(X)}{3}=\frac{3}{2} +\frac{1}{3}+\frac{5}{3} \\\frac{6E(X)-3E(X)-2E(X)}{6}=\frac{9+2+10}{6}\\\frac{E(X)}{6}=\frac{21}{6}\\E(X)=21$

Thus, the expected number of minutes the rat will be trapped in the maze is 21 minutes.

3 0

4 years ago

ΔXYZ was reflected to form ΔLMN. Which statements are true regarding the diagram? Check all that apply. ΔXYZ ≅ ΔLMN ∠Y ≅ ∠M ∠X ≅

garri49 [273]

correct answers are:

A) ΔXYZ ≅ ΔLMN
B) ∠Y ≅ ∠M
C) ∠X ≅ ∠L
F) XZ ≅ LN

4 0

4 years ago

Read 2 more answers