Nadia’s bookshelf contains 10 fiction books, two reference books, and five nonfiction books. what is the probability that she randomly picks up a reference book and then, without replacing it, picks up a nonfiction book?

answer:   our required answer is

.

explanation:

since we have given that

number of fiction books = 10

number of reference books = 2

number of of non - fiction books = 5

total number of books is given by

now, we need to calculate the probability that she randomly picks up a reference book which will be

now, without replacing it, picks up a non-fiction book ,

total number of books remaining in a bookshelf is given by

probability of getting a non-fiction book is given by

now, probability that she randomly picks up a reference book and then without replacing it   picks up a non-fiction book is given by

so, our required answer is

.

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.

22.83 repeating

step-by-step explanation:

137 ÷ 6 is 22.8333333 therefore we understand that 3 is repeating.

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