5x - 9 = -30. Hope this helped!
Answer:
30
Step-by-step explanation:
3*4=12
42-12=30
=30
Answer:
Maybe depends how much chocolate cake u are
Step-by-step explanation:
That's not true at all.
If a=2 and b=3 . . . then
2 · a · b = 12
but
a² + b² = 13 .
This doesn't satisfy your statement, because 12 and 13 are not equal.
Right off hand, it looks to me as if your statement is true
ONLY if
|a| = |b| ('a' = plus or minus 'b')
and NOT for any other pairs of numbers.
Its the first one for all three of the questions
