Answer: First Option : Sₙ= n/2(a₁ + aₙ)
Step-by-step explanation:
The nth partial sum of an arithmetic sequence or the sum of the first n terms of the arithmetic series can be defined as the sum of a finite number of term in an arithmetic sequence.
It is calculated using the formula:
Sₙ= n/2(a₁ + aₙ)
Where :
a₁ = First term
aₙ = last term
n = number of terms
Answer:
y = 5; x = 1/5
Step-by-step explanation:
xy = 1 -----> x = 1/y
xy^2 = 5 -----> 1/y * y^2 = 5
y^2 / y = 5
y = 5
5x = 1
x = 1/5
Hope this Helps!
This is a volume question. 8x8x8, 512 cubic inches of water.
Answer:
the answer above me don't click it that's kinda sus sooo
Step-by-step explanation:
The box in the shape of a rectangular prism it measures 15 in. long, 11 in. wide, and 24 in. tall A so in B in.2 © 789 in.2 1,578 in.2
