Ms. chang has 16 students in her class. she wants to send 3 of her students to pick up books for the class. how many combinations of students can she choose?

a. 48
b. 250
c. 560
d. 3360

(C) 560

Step-by-step explanation:

Total students = 16

Number of students to send = 3

Since the position is not important,

Number of combination

= (16 x 15 x 14) / (1 x 2 x 3)

= 3360/6

= 560

answer: the answer is c.

step-by-step explanation:

she’s dividing 1/3 of the flour into 2 jars.

hope this : )

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for