I believe its 720 but I'm not 100% sure
Answer:
sqrt d = 10
d = (10)^2
d = 100
Part b
x^2 = 144
x = 12 or -12
Step-by-step explanation:
Answer is 1/2 ln (x^2+1) + 2 tan ^-1 (x) +c
in order to do this first say (x/x^2+1)+ 2/(x^2+1)
we already know that 1/x^2+1 equal tan^-1 (x)
for the first part you need to say u=x^2+1 and solve it by substitution
I hope this helps..let me know if you need more explanation
Answer:
x=4
Step-by-step explanation:
2x (or x2) =8
x=8/2
x=4
You have to take away the 2 in this case and divide the other side (8) by 2
That would be (3,0)
just do a little subbing and see which one comes out true
y > -2x + 3.....(3,0)
0 > -2(3) + 3
0 > -6 + 3
0 > -3 (yep,thats true)
y < x - 2...(3,0)
0 < 3 - 2
0 < 1 (also true)