any one know the anser to this?
if a squared = 9 and b squared = 64, whitch CANNOT be the value of a+b?
a. - 15
b. - 1
c. 15
d. 1
e. 113
everyone else i asked has no idea haha
2007-10-08 11:19:04 · 14 answers · asked by jessica354 2 in Education & Reference ➔ Homework Help
my teacher copied it down wrong. thanks for the help though!
so im not going to choose the best answer. ill let you guys decide
2007-10-10 11:34:13 · update #1
a^2=9 b^2=64
a^2 + b^2 = c^2
3 + 8 = c
11 = c
3☺ 8☺ 15☺ -15☺ 1☺ -1☺ 113x
The answer is it is not 113.
2007-10-08 11:31:08 · answer #1 · answered by Misty 2 · 1⤊ 0⤋
a = + or - 3 (3 squared = 9)
b = + or - 8 (8 squared = 64)
-3 +-8 = -11
3+ 8 = 11
- 3 + 8 = 5
3+ - 8 = -5
f) all of the above
sorry, if this is not a trick question, i think you copied it wrong
2007-10-08 11:28:03 · answer #2 · answered by Katie 3 · 0⤊ 0⤋
None, actually.
a^2 = 9
a = 3 or (-3)
b^2 = 64
b = 8 or (-8)
3 + 8 = 11
3 + (-8) = (-5)
(-3) + 8 = 5
(-3) + (-8) = (-11)
The only numbers that a + b could equal would be (-11), (-5), 5, and 11.
2007-10-08 11:28:48 · answer #3 · answered by Anonymous 2 · 0⤊ 0⤋
in (a + b)
a can either be 3 or -3 and
b can either be 8 or -8
so none of them can the value of (a + b)
as when:-
a is -3 and b is -8 (a +b) = -11
a is -3 and b is +8 (a + b) = 5
a is +3 and b is -8 (a + b) = -5
a is +3 and b is +8 (a +b) = 11
2007-10-08 11:27:41 · answer #4 · answered by CTRL Freak 5 · 2⤊ 0⤋
a^2=9 --> a is either +3 or -3
b^2=64 --> b is either +8 or -8
so a+b can be:
11,-5,5 or -11 !
so i think the answer of your question is any of the answers can not be the value of a+b !
maybe it is kind of a tricky question. does it state on the question that only one choice is correct?..if it didn't state that then just pick any of them..coz all of them can;t be a+b..
and tell us the answer when you know it:)
2007-10-08 11:33:37 · answer #5 · answered by akramicoooo 1 · 0⤊ 0⤋
It's none of them.
a sqared = 9
a = 3 or -3
b squared = 64
b = 8 or -8
a+b=?
3+8=11 / -3+8=5 / 3+-8=-5 / -3_-8=-11
2007-10-08 11:55:24 · answer #6 · answered by Rawbert 7 · 0⤊ 0⤋
well a is equal to 3 and b is equal to 8
squaring a negative number or positive will make it positive no matter what....remember to negatives cancel out each other
so.....3+8 is equal to 11
I don't see how any of these choices can fit here!
2007-10-08 11:28:16 · answer #7 · answered by JaxJagsFan 7 · 0⤊ 1⤋
none of them thnx to sasasasasanak
3 minus 8
8minus 3
3 plus 8 is the same as minus
2007-10-08 11:26:29 · answer #8 · answered by Anonymous · 0⤊ 2⤋
Um... I like to eat pie! Sorry I have no clue what the heck that is or what it means but I hope my joke put a smile on your face! TE-HE!
2007-10-08 11:23:46 · answer #9 · answered by Anonymous · 0⤊ 2⤋
That really doesnt make too much sense to me, are you sure u have written it down correct?
2007-10-08 11:23:49 · answer #10 · answered by Curious 3 · 1⤊ 1⤋