Question

help me solve please
2 13 years ago

Answer 1

what have you tried so far?

Answer 2

nothing im not sure how to work out these problems

Answer 3

so for the first one do you have this?\[\large 2 < d + \frac{1}{2} < 4(\frac{1}{2})\]:

Answer 4

yes

Answer 5

but a negative in front of the 2

Answer 6

so,\[\large -2 < d + \frac{1}{2} < 4(\frac{1}{2})\] ?

Answer 7

yes

Answer 8

So we have: \[\large -2 < d + \frac{1}{2} < 2\]

Answer 9

now we minus 1/2 from everywhere to get: \[\large -2-\frac{1}{2} < d < 2-\frac{1}{2}\] and then we get (by minusing):\[\large -\frac{5}{2} < d < \frac{3}{2}\]

Answer 10

?

Answer 11

oh yeah now i see

Answer 12

is that al you do for that problem

Answer 13

yip :) so do you understand?

Answer 14

the other two are easier so if you understand this one you can most probably do the other two

Answer 15

thank you mucho