Answer:
2 solutions:
x=5 and y=7
x=-1 and y=-5
Step-by-step explanation:
y=2x-3
y=x^2-2x-8
y=y so:
2x-3=x^2-2x-8
simplifying to:
x^2-4x-5=0
factoring to:
(x-5)(x+1)=0
x=5 or x=-1
if x=5 then y=2(5)-3=7
if x=-1 then y=2(-1)-3=-5
Answer:
Step-by-step explanation:
Add 25 to both sides:
Square root both sides:
(Since a negative number multiplied by itself gives positive, there are two answers.)
I'm not sure what you rquestion is exactly but i got 10.8 as the amount that you give
Answer:
Option 4
Step-by-step explanation:
Ok so I don't now how to explain this well but basically, -2 < 4 are both x. The very bottom of the line is shown as -2 and the very top of the is shown as 4. The bottom of the line is increasing to 4. So therefore it would be option 4. Sorry if you don't understand very well.
No. You can't even start. Division by zero is 'undefined', and
the procedure is not even allowed. So it's not correct to even
discuss why it's difficult, or what the answer 'would be'. Math
simply doesn't allow it.
