Question

PLEASE HELP
Evaluate the expression below when g = -6

-3g minus 2 minus(-4g + 10)
or
-3g - 2 -(-4g + 10)

Answer 1

ugh

Answer 2

-3g - 2 -(-4g + 10)

-3(-6) - 2 -(-4(-6) + 10)

18 - 2 -(24 + 10)

18 - 2 -(34)

18 - 2 - 34

16 - 34

-18

So -3g - 2 -(-4g + 10) = -18 when g = -6

Answer 3

thx jim i think that made more sense to me the other person knew the idea but i could tell that the way he solved it was not correct so i was confused

Answer 4

if you have a graphing/scientific calculator (like a TI 83), then you can type the second line exactly as you see it and you'll be able to confirm the answer

Answer 5

9 squared is 81 and NOT 18

Answer 6

and you square the 9 before you multiply

Answer 7

k give me a second to try to re due that haha

Answer 8

ok

Answer 9

hey i just found my TI-83 Plus silver edition and i was just curious if you know how to make the little two thing up above the other numbers ya know

Answer 10

to find \[\Large 9^2\] type 9^2

Answer 11

there is a ^ key on your calculator

Answer 12

haha that was strangly obvious haha

Answer 13

lol that's ok, if you've never used it before, then it's a bit strange at first and hard to figure out

Answer 14

ok is the answer 180?

Answer 15

it is, nice job

Answer 16

awesome it feel really good to finally understand what the hell im doing lol and i think finding my calculator will be a huge help

Answer 17

lol it definitely is a huge help and it can do a lot, so you'll be using it later down the road for sure

Answer 18

and that's good you now know what's going on and such

Answer 19

haha but i already have another question for you lol

Answer 20

go for it

Answer 21

i just tried to find the sum of this problem
4x^2+7x^2
but i got .498 and i dont think thats right the only confusing thing is i did it on the calculator and i dont know how i put it in wrong on the calculator

Answer 22

4x^2 and 7x^2 are like terms because they have the same variable with the same exponent

Answer 23

so you can add the coefficients: 4+7 = 11

Answer 24

this means 4x^2+7x^2 = 11x^2

Answer 25

so when i am looking at an equation how do i just know that they are like terms

Answer 26

Notice they both have an x

Answer 27

And the exponent over the x is 2

Answer 28

if you had 4x^2 and 7x, then they would NOT be like terms

Answer 29

oh obviously still blonde

Answer 30

so it's making sense now?

Answer 31

is it 11 x^2

Answer 32

it is

Answer 33

ok so am i able to figure that out on the calculator

Answer 34

not with a TI 83, but you can add the coefficients

Answer 35

you can add 4+7 on the calculator, but I'm betting you can probably do that in your head

Answer 36

haha ok :)