I need points so I can ask my question hope you get your answer
False. because the number before the decimal is a 0 on the first one and a 2 on the second, it is smaller.
Answer: D (-14), A (Step 1), C (72), D, [(5x(-20)) x (100 x (-0.7))]
Step-by-step explanation:
1) -1/3 x 12 = -4
-1/3 x 30 = -10
-4 + -10 = -14
2) It basically repeats the same equation so they can both be worked out. So, step 1 is the answer.
3) 72 (think of B.O.D.M.A.S. or P.E.M.D.A.S.)
4) D
Answer:
247.12 million
Step-by-step explanation:
Given:
In 1990, population=242 million
In 1999, population=244 million
estimated population in 2013=?
Estimated growth is calculated by:
P(t)= Po*e^(kt)
where Po is original population
k is growth rate
t is the time in year
Now putting the values of Po=242, P(t)=244, t=9 (t=1999-1990=9) we have:
244=242e^(9k)
(244/242)=e^(9k)
ln(244/242)=9k
k=1/9ln(244/242)
k=0.00091
Now Putting k=0.00091, Po=242, and t=23 (t=2013-1990=23) we have:
P(t)=242e^(23*0.00091)
P(t)=247.12 million
the population in 2013 estimated to be 247.12 million!
Dude I got the perfect answer is uhh