To reduce laboratory costs, water samples from five public swimming pools are combined for one test for the presence of bacteria. further testing is done only if the combined sample tests positive. based on past results, there is a 0.004 probability of finding bacteria in a public swimming area. find the probability that a combined sample from five public swimming areas will reveal the presence of bacteria. is the probability low enough so that further testing of the individual samples is rarely necessary

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

i need a diagram

step-by-step explanation:

no

3xy cannot be combined with the others

2x, -5x and x are like terms

the anwers is yes.