Given:
The sequence is 25, 20, 15, 10, 5.
To find:
The ninth term of the given sequence.
Solution:
We have,
25, 20, 15, 10, 5
It is an AP because the difference between two consecutive terms are same.
Here,
First term (a) = 25
Common difference (d) = 20-25
= -5
The nth terms of an AP is
Where, a is the first term and d is the common difference.
Putting a=25, n=9 and d=-5 to get the 9th term.
Therefore, the ninth term of the given sequence is -15.
Answer:
No its C sorry
Step-by-step explanation:
Answer:
2.2 cms.
Step-by-step explanation:
Volume = area of the base * height:
88 = 40 * h
h = 88/40 = 2.2 cms.
Answer:3
3(4x+3)
Step-by-step explanation:
We have to calculate the radius
Radius: Distance between the points (8,2) and (3,7)
Given two points (x₁,y₁) and (x₂,y₂) the distance between these points will be:
Distance=√((x₂-x₁)²+(y₂-y₁)²)
In this case:
Distance=radius=√((3-8)²+(7-2)²)=√(25+25)=√50
Area of a circle=πr²
Data:
r=√50
Therefore:
Area of this circle=π((√50) u)²=50π u²≈157.1 u².
Answer: the area would be: 50π u² or 157.08 u²
