Alexandre has two brothers: Hugo and Roman. Every day Roman draws a name out of a hat to randomly select one of the three brothers to wash the dishes. Alexandre suspected that Roman is cheating, so he kept track of the draws, and found that out of 12 draws, Roman didn't get picked even once. Let's test the hypothesis that each brother has an equal chance of of getting picked in each draw versus the alternative that Roman's probability is lower. Assuming the hypothesis is correct, what is the probability of Roman not getting picked even once out of 12 times? Round your answer, if necessary, to the nearest tenth of a percent.​

`1234567890-=/*-qwertyuiop[]asdfghjkl; '\\zxcvbnm,./+ /

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

i believe the correct answer is b.

step-by-step explanation:

and 90% of people marry there 7th grade love. since u have read this, u will be told good news 2night. if u don't pass this on nine comments ur worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of ur life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u

read more on -