Answer:
an = 12 + 6(n-1)
Step-by-step explanation:
The formula for an arithmetic sequence is
an = a1+d(n-1)
where a1 is the first term and d is the common difference
a1 =12
To find d take the second term and subtract the first term
18-12 = 6
Check with the third term and the second term
24 -18 = 6
We add 6 each time
d= 6
an = 12 + 6(n-1)
Answer:
9
Step-by-step explanation:
just add
Answer:
Option A is correct, i.e. 4.5*10^-3
Step-by-step explanation:
To write scientific notations:-
1. The first digit should be non-zero.
2. The decimal representation should be a number greater than 1 and less than 10.
3. The exponent representation should be in form of 10's power.
Checking given options:-
B. 14.5*10^2
Given option B has decimal representation greater than 10, so it is NOT correct.
C. 0.78*10^-6
Given option C has decimal representation less than 1, so it is NOT correct.
D. 5.7*4^8
Given option D has exponent representation NOT in form of 10's power, so it is NOT correct.
<u>Checking option A:- 4.5*10^-3</u>
Given option A has decimal representation between 1 and 10. Also it has exponent representation in form of 10's power.
Hence, option A is correct, i.e. 4.5*10^-3
$9 a day for 8 days.
So, for every day that went by they earned $9. In other words the answer is the Amount of Money Earned per day multiplied by the number of days!
So!
$9 * 8days
Or you can also think of it as this:
9+9+9+9+9+9+9+9
Our answer comes out to be 72!
