Answer:
6
Step-by-step explanation:
mulyiplying is for finding out the area
Answer:
a) 
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that A and B are independent events
P(A∩B) =P(A) P(B)
we will use the conditional probability
or
<u></u>
<u> Step(ii):-</u>
Given that A and B are independent events
P(A∩B) =P(A) P(B)
<u></u>
A) 2.025 x 10^14 kilometers / 225 million years
B) 2.25 × 10^8
C) 2.025 x 10^14 kilometers / 2.25 x 10^8 years
D) 2.025 x 2.25 = .9
E) 10^14 - 8 = 10^6
F) .9 x 10^6
Notes:
To write in scientific notation, move the decimal place over until there is only 1 number outside of it. (25,000 now equals 2.5) Then count how many spaces you moved over (25,000 moved over three zeros, and the five. That is 4 places) that is what you use to put over the 10 (2.5 x 10^4 = 25,000)
1st disribute .4 through the parentheses.
.4 (.3x-1)=2+.75x
.12x-.4=2+.75x
subtract .12x from each side
-.4 = 2 + .63x
subtract 2 from each side
-2.4 = .63x
Divide each side by .63
-3.81 = x
after 4 weeks:
.3*4= 1.2 saved
then it is doubled
1.2*2 = 2.40
8 weeks
he will have saved for 4 more weeks ( week 5 6 7 8)
4 * .3 = 1.2 saved
2.4 + 1.2 = 3.6 saved
then it is doubled
3.6 * 2 =7.20
he will have saved for 4 more weeks ( week 9, 10, 11, 12)
4 * .3 = 1.2 saved
7.2+ 1.20=8.40
then it is doubled
8.4*2 = 16.8
He will have 16.80 after 12 weeks
