it has gone up 4 lines and left -2 making it go for a (4,-2)
1. Use Difference of squares: a^2-b^2=(a+b)(a-b)
(x+k)(x-k)=0
2. Solve for x and k
x=+-k
k=+-x
Terrorism caused 9/11... it is hands down that simple
Answer:
do you mean a fraction? if so..
Step-by-step explanation:
Every number in decimal form, in which either decimals terminate or certain numbers after decimal point continue to repeat endlessly, can be written as a fraction. As the given number 4.5 terminates after first deciimal it can be written as fraction. Here we have 4.5=4510= 9/2
which as a fraction means 4 and because you have 1 left over from the 9 its 4 1/2 or 4.5 :)
Answer:

Step-by-step explanation:
The half life is the amount of time it takes a substance to decay to half of its original amount.
Since the radioactive substance has a half life of 1000 years, there will be half of it left after 1000 years.
So, the fraction that will be left after 1000 years is 