Answer:
Step-by-step explanation:
y=x²-2x-1
and y=-3x+5
x²-2x-1=-3x+5
x²+x-6=0
x²+3x-2x-6=0
x(x+3)-2(x+3)=0
(x+3)(x-2)=0
x=-3,2
when x=-3
y=-3×-3+5=9+5=14
when x=2
y=-3×2+5=-6+5=-1
so solutions are (-3,14) and (2,-1)
Answer:
if their asking for % then this is the answers
1. 41% of 900 is 369
2. 24%
3. 46%
4. 23%
5. 95%
6. 23%
7. 75%
8. 22%
9. 92%
10. 45%
.00084 in scientific notation is 8.4 × 10^-4
