2.) A bookshelf contains seven math textbooks and three science
textbooks. If two textbooks are drawn at random without replacement,
what is the probability both books are science textbooks? *
A)1/15
B)3/10
C)3/7
D)1/2

A

Step-by-step explanation:

the probability of the first book being science is (science books/total books)

there are 3 science books and 7 + 3 = 10 total books

so the probability the first time is 3/10

if you pick a science book the first time and don't replace it, the number of science books drops to 2, and the total books drops to 9

so the probability the second time is 2/9

now multiply these two values to find the probability of both being science books

3/10 x 2/9

= 6/90

= 1/15

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.