Answer:
12750
Step-by-step explanation:
The sequence of visitors is
50, 100, 200, 400, .....
This is a geometric sequence
with common ratio r = 2
The sum to n terms is found using
= 
( a is the first term )
= 
= 50 × 255 = 12750
Answer:
4/5
Step-by-step explanation:
y is 5 times as big as x
When y is 4, divide it by 5 to find x
x = 4/5
Answer:
Equal to
Step-by-step explanation:
Hello!
Let's simplify the left side:
Remember that the negative sign also means opposite, so the opposite of negative 9 is positive 9.
Let's simplfy the right side:
Remember that in an absolute value bracket, any positive value stays positive, but any negative value turns to the positive value.
So the inequality is 9 _ 9
Therefore the sign should be "=" as 9 is equal to 9.
The first blank on the left side should be 0 I think
Answer:
613297
Step-by-step explanation:
The equation for exponential decay is y=A(1-r)^t
A=654,000
r (rate)=0.008 (0.8% as a decimal)
t=8 (2009-2000=8)
y=659,000(1-0.008)^8
y=613297.4028
Since you can't have part of a person, round: y=613297
