Given AP is 21 ,18,15,...
First term = 21
Common difference = 18-21 = -3
Let an = -81
We know that
an = a+(n-1)d
⇛21+(n-1)(-3) = -81
⇛ 21-3n+3 = -81
⇛24-3n = -81
⇛ 24+81 = 3n
⇛ 105= 3n
⇛ n = 105/3
⇛ n = 35
35th term of the AP is -81.
<u>also</u><u> read</u><u> similar</u><u> questions</u><u>:</u> Which term of a AP 5 , 13 , 21 ,... is 181?
brainly.com/question/2406241?referrer
Which term of the AP:3, 8, 13, 18,...,is 78?
brainly.com/question/15380012?referrer
Answer:
1520.5 cm²
Step-by-step explanation:
Surface area of a sphere =
A = 4πr²
= 4 x π x (11)²
= 1520.530844
= 1520.5 cm²
Answer:
She bought 5 pounds.
Step-by-step explanation:
if she spent 10 dollars and its 2 dollars per pound that means that you have to divide 10 by 2 in order to get how many pounds you can buy for 10 dollars.
If you think about it if you want 2 pounds then you multiply 2 by 2 to get four because its 2 dollars per pound and you need 2 pounds. so since you don't know the number of pounds you fill in the blanks and do 10/2 to get 5.
Answer:
$65.80
Step-by-step explanation:
Divide 26.32 by 8 to find how much is in one gallon.
26.32÷8=3.29
So it's 3.29 per gallon.
Multiply 3 29 by 20.
20×3.29= 65.8
So he would spend $65.80
Absolute value can never be negative!
|-30| = 30
|-4 | = 4
| 5 | = 5
30 - 4 + 5 =
26 + 5 = 31
Hope this helped!
