Answer:
A≈7238.23
Step-by-step explanation:
A=πr2
Area =π(48)2
Answer:
-1
Step-by-step explanation:
To calculate the median, you select the middle number. So first, we must put the numbers in order
-23, -20, -16, -<u>1,</u> -1, 10, 10
The middle number is -1. (there are 3 numbers either side)
Mars year is 1.88 of your Earth years.
So if you are 13,
1.88 x 13=24.44, or 24 years old, I think.
Answer:
First term (a) =8
Common difference (d)= t2-t1
=12-8
=4
Now, sum of first 31th term (tn31) =n/2{2a+(n-1)d}
= 31/2{2×8+(31-1)4}
=31/2{16+(30×4)
=31/2(16+120)
=31/2×126
=31×63
Step-by-step explanation:
Similarly use 19 as (n) for the 19th term
Step-by-step explanation:
a_n=6-n
➜a_1=6-1
<h3>➜5</h3>
➜,a_2=6-2
<h3>➜4</h3>
➜a_3=6-3
<h3>➜3</h3>
➜a_20=6-20
<h3>➜-14</h3>
