Abowl has slips of paper with a single number on it with numbers from 2 to 13. no number is repeated. what are the odds against picking a prime number at random?

you have a 58%(rounded) chance against picking a prime number at random

you have a 58%(rounded) chance against picking a prime number at random

4/13 chance

Step-by-step explanation:

Because there the prime numbers between 2 and 13 are 5, 7, and 11 if you are not including 2 and 13.

4/13 chance

Step-by-step explanation:

Because there the prime numbers between 2 and 13 are 5, 7, and 11 if you are not including 2 and 13.

phosphate, calcium ion, chloride ion, neon atom

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4