Em uma urna ha 17 bolas verdes e 9 bolas vermelha 6 bolas pretas e 5 bolas cinzas. Qual e o numero de bolas que devemos sacar nessa urna para termos certeza de que obtemos pelo menos 13 bolas da mesma cor

Kiyoshi is replacing some of the flooring in his house. He will need 200 square feet of hardwood flooring and 350 square feet of carpet.

What is an indirect proof? A. Indirect proof requires you to prove that all but one of a set of possible alternatives is true. B. Indirect proof requires you to prove that all possible alternatives is false. C.

The Lee's have three children. The oldest is twice as old as the youngest. The middle child is five years older than the youngest. If the sum of the ages is 57, how old is each child?

Seventy percent of the 100 students in middle school cafeteria bought their lunch sone of the students that brought there own lunch leave the cafeteria to attend a assembly now only 60% of the remaining students bought their lunch how many students

What number is irrational

How many solutions does this equation have? -6 - 8r = 8 - r

The number of years of education of self-employed individuals in the united states has a population mean of 13.6 years and a population standard deviation of 3.0 years.

Which is not equivalent 1/5 7/35 6/25

How do I solve this equation A=2x+6xz

What percent of the prime numbers less than 100 have a units digit of 3?