Question

Evaluate the expression for r = 2 and t = 7.

3(r2 + t) - r2

Answer 1

ok this one i can solve :P for sure

Answer 2

\[3(r^2 + t) - r^2\]first you have to simply the expression by distributing out the 3 and adding or subtracting like terms. What do you get then?

Answer 3

3(r2+t)-r2
3(2(2)+7)-2(2)

Answer 4

use the PEMDAS formula

Answer 5

It's easier if you just simplify the expression first.

Answer 6

i dont know how! but i do know what it means

Answer 7

3(r^2+t)

Simplify that first...what does it turn into?

Answer 8

ok so first you have to do the Parentheases

Answer 9

so (2(2)+7)

Answer 10

3^2 + t

Answer 11

4+7=11

Answer 12

3*11-2(2)

Answer 13

3*11-4

Answer 14

33-4=29

Answer 15

29 is your final answer

Answer 16

Don't give the answer

Answer 17

and I don't think that's the answer

Answer 18

y???

Answer 19

You really need to stop doing the work and giving the answer away. It's not different from someone who just gives answers away.

Answer 20

i pretty sure someone gave you a full answer sometime in your life,its fine just as long as person understands the problem afterwords

Answer 21

Umm no I never do that and the person clearly doesn't understand because halfway through the explanation the person attempted at trying to solve it and did some very weird operations.

Answer 22

well im so *Sorry*

Answer 23

http://openstudy.com/study#/updates/502af934e4b099b91b4f95f5

they asked basically the same question again....they clearly didnt get it