1. ## True or False

i have here ten true or false problems and answers:
1. false because it is 16
2. true because sq root of 1 - 1 is 0... ( not too sure)
3. true because it is 1 after substituting 2 in the place of x
4. false because it is 81. ( not too sure)
5. false because the line should be 2x + 3y - 13 = 0
6. true does not exist
7. false because the interval should [0,1) and it is discontinuous ( not too sure)
8. false because it is indeterminate
9. false because it does exist to 2/3 ...
10. false because h(x) does not exist.

Guys hope im doing right here.... pls check my work. because i cannot tell these are sure answers.

Thanks

2. ## Re: True or False

I think you have them right, except for (1) - the answer is correct (false) but the limit is not 16.

3. ## Re: True or False

what is the answer in the number 1 sir?

4. ## Re: True or False

$\displaystyle \lim_{x \to -2} \frac{x^4-16}{x+2} =$

$\displaystyle \lim_{x \to -2} \frac{(x+2)(x-2)(x^2+4)}{x+2} =$

$\displaystyle \lim_{x \to -2} (x-2)(x^2+4) = ?$

5. ## Re: True or False

- 16 .. thanks

6. ## Re: True or False

Originally Posted by rcs
- 16 .. thanks
Think again.

7. ## Re: True or False

(-2 - 2) (-2^2 + 4)
( -4 ) ( 4 + 4)
(-4) (8) = - 32 hmmm i always get wrong ... if i dont have to recalculate it over and over

but it is ok... thank you guys for giving me hits and if not solve them entirely the problems