Its best to use higher measurements with bigger stuff and it will save a ton of time
Distribute. -18 + 9i + 18i -9i^2. as i^2 = -1, the equation can be simplified to -9 + 27i as the final answer.
The answer is 180°
Angles between straight lines are 180°
Hope this helps :))
Answer:
x=-7
Step-by-step explanation:
xe^-x+7e^-x=0
factor out the e^-x
e^-x(x+7)=0
e^-x=0, x+7=0
-x=ln(0), x=0-7=-7,
since ln(0) is undefined,
the only solution is -7.
