Your english teacher has given you a list of 10 possible topics for essays. you need to pick four topics from the list to write about over the school year. how many different groups of four essay topics can you choose?

210.

Step-by-step explanation:

Its Combination so

10C4

= 10! / 4! (10-4)!

(10-4) = 6!

= 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 divided by

4 x 3 x 2 x 1   6 x 5 x 4 x 3 x 2 x 1

cross all the common factors

= 10 x 9 x 8 x 7 /  4 x 3 x 2 x 1  multiply those

5040 / 24 = 210 different groups of four essay topics that can be chosen.

HAVE A GREAT DAY!!!

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.

answer: i'm not sure

step-by-step explanation: