Answer:
x=3
Step-by-step explanation:
3x-6x+7=-2
subtract 7 from both sides
3x-6x=-9
-3x=-9
3x=9
x=3
The range of the data is 12
Okay, so, you'd have to first multiply 2/3 and 2/5, which gives you 4/15.
This means that, overall, 4/15 students study French, which means that 11/15 students do not study French.
Therefore, the ratio of students that study French to students who do not study French is 4:11.
Answer:
-3e^-2x(x+1)
Step-by-step explanation:
formula of byparts integration:
g(x)∫f(x)dx-∫∫f(x).d/dx(g(x))dx
=(6x+3)∫e^-2x dx-∫∫e^-2x.d/dx(6x+3)dx
=(6x+3)((e-2x)/-2)-∫(e^-2x)/-2 .6 dx
=(6x+3)((e-2x)/-2)+3(e^-2x)/-2
=(6xe-2x+3e-2x+3e-2x)/-2
=(6xe-2x+6e-2x)/-2
=6e^-2x(x+1)/-2
=-3e^-2x(x+1)