If there are 20 students in a 5th grade class. Four of these students will be selected to be patrols. In how many ways can the four patrols be selected?

There are 4845 ways to select four patrols

Step-by-step explanation:

Total number of students in 5 th grade = 20

No. of students selected for patrols = 4

We are supposed to find In how many ways can the four patrols be selected

We will use combination

Formula :

Substitute n = 20 and r = 4

So,the four patrols can be selected in no. of ways =

Hence There are 4845 ways to select four patrols

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.

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)