Question

have quick question need to see if my answer is correct
p(s)=2s^3-9s-10 P(1/2) the answer i got was 3/4 please someone work this and let me know

Answer 1

your answer is wrong

Answer 2

take it one step at a time.
what is s^3 for s = 1/2?

Answer 3

I need feedback to help you, tina

Answer 4

you substitute s for 1/2

Answer 5

sorry gave you the wrong equation
P(s)=2s^3-2s-1

Answer 6

your answer is still wrong.
take it one step at a time.
what is s^3 for s = 1/2?

Answer 7

1/4

Answer 8

are you sure? s cubed is s times s times s.

Answer 9

its not that complicated
p(s)=2s^3-2s-1
p(1/2)=2(1/2)^3-2(1/2)-1

Answer 10

right, so 2s^3 is 2 times 1/2 times 1/2 times 1/2
what is that equal to?

Answer 11

2/8=1/4

Answer 12

okay good.
what is 2s?

Answer 13

The value of 2s for s = 1/2 is?

Answer 14

2/2=1 this is where i got messed up i think

Answer 15

okay. so then your equation becomes (1/4)-1-1

Answer 16

or (1/4)-2

Answer 17

right

Answer 18

so evaluate that. that value is your answer.

Answer 19

1/2

Answer 20

how did you get that? post what you did here.

Answer 21

1/4-2/1
2/4
1/2

Answer 22

okay so are you telling me that if you take away 2 dollars from a quarter, you end up with 50 cents?

Answer 23

http://www.youtube.com/watch?v=52ZlXsFJULI

go through that video. It will teach you how to how to add and subtract fractions.

Answer 24

yeah cause i really hate fractions

Answer 25

-1 3/4

Answer 26

yes, that is right.

Answer 27

go through some videos on how to add and subtract the fractions. The video I posted helps you think about fractions intuitively.

Answer 28

ok so then that is the final answer, i will i get them mixed up all the time

Answer 29

okay goodluck.

Answer 30

ty

Answer 31

np