Mathematics: A box contains 90 discs numbered from 2 to 90. If one disc is drawn at a random, find the probability that it bears a two digit number

A box contains 90 discs numbered from 2 to 90.

micvar9646

13.02.2022

Step-by-step explanation:

Let E be the event of drawing a disc from the box of discs numbered from 1 to 90

Two digit numbers from 1 to 90=10,11,12,,90

No. of favorable outcomes=81

Total no. of possible outcomes =90

We know that, Probability P(E) =(Total no.of possible outcomes)(No.of favorable outcomes)=9081=109

Therefore, the probability of a two digit numbered disc from the box of discs numbered from 1 to 90=109

hope it helps !

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06laurenelizabeth

09.10.2021

Answer and Step-by-step explanation:

Greetings!

Let's~solve~your~question!

$To~find~the~length~of~equal~sides~of~an~isosceles~triangle,~we~use~the~following\\formula.$

$\boxed{~P=2a+b~}$

Now,~solving~for~``a":

$P=\frac{P}{2} -\frac{b}{2}$

$=\frac{10}{2}-\frac{2}{2}$

=5-1

Thus,~each~equal~sides~of~an~isosceles~triangle~is~4cm.

Hope~my~answer~helps~and~have~a~blessed~day~ahead!

-Isabelle~Williams

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