Answer:
225
Step-by-step explanation:
Using the basic components of summation ∑
∑n = 
n(n + 1) and ∑1 = n
Thus
∑ (2n - 1) ← for n = 1 to 15
= ∑2n - ∑1
= 2∑n - ∑1
= 2 ( n(n + 1)) - n
= n(n + 1) - n ← Evaluate for n = 15 ( the upper value )
= 15 × 16 - 15
= 240 - 15
= 225
From the graph, the given points are (2,-1) and (4,0). Use the distance between two points formula:
Substitute these points in the formula.
Hence, the distance is √5
Answer
Answer:
(2,3)
Step-by-step explanation:
(2,3) is your answer
Answer
5
Step-by-step explanation:
10^2= 100
so b must be 5
Answer:
Step-by-step explanation:
