## anonymous one year ago need help! Statistical models predict that the price (in dollars) of a 500 GB hard drive will change according to the function p(t) = 600 − 2t2, where t is the month. Which expression gives the number of months t (passed since January 1) in terms of the price p?

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1. anonymous

could anyone help me?

2. Ehsan18

options?

3. anonymous

the options are 1. 300 - p 2. 300 - 0.5p 3. sqrt300-p 4. sqrt300-0.5p

4. anonymous

on 3, it looks like $\sqrt{300-p}$

5. anonymous

and on 4 it looks like $\sqrt{300-0.5p}$

6. anonymous

@mathmath333 could you help me again please? dont worry, this is just practice for next year. not my actual work

7. Ehsan18

can you find the inverse?

8. anonymous

yes

9. Ehsan18

thats how you will get it...do you want me to solve it? Also is it 2t^2 in the equation I think you miss printed.

10. anonymous

thanks. could you help solve it? i tried the inverse and i think i am doing soemthing wrong. i didnt get any of the answers

11. anonymous

&Ehsan18

12. Ehsan18

Its option D

13. anonymous

how did you get that?