Hi! We’re going to use the pythagorean theorem to answer this.
3 + x^2 = 8
subtract 3 from 8
x^2=5
take the square root of both sides
x=sqrt5
61x2=122, sine 122 is an even number it is divisable by 2 so 122 divided by 2 is 61 so 61x2=122
Its a simultaneous equation:
lets make "x" the used games and "y" the new ones
4x + 2y = 84
6x + y = 78. (multiply this by 2 to cancel out y)
12x + 2y = 156
so now we subtract them:
12x - 4x = 156 - 84
x = 9
used games cost $9
new games cost 78 - 6(9) = $24
Janet has $120 but she already bought 3 NEW games so:
120 - 3(24) = $48 left
48/9 = how many used ones she can buy = 5. something
she can buy 5 used
Answer:
f(x) = 4x4 – 7x2 + x + 25 f(x) = 9x4
Step-by-step explanation:
Because it has to be this one
Answer:
I believe it's A
Step-by-step explanation:
Hope this helps!
