bahodur959 bahodur959
  • 19-05-2019
  • Mathematics
contestada

Evaluate the sum
A. 306
B. 240
C. 360
D. 272

Evaluate the sum A 306 B 240 C 360 D 272 class=

Respuesta :

calculista
calculista calculista
  • 29-05-2019

Answer:

Option D. [tex]272[/tex]

Step-by-step explanation:

we know that

To evaluate the sum , use the formula

[tex]S=\frac{1}{2}(a1+an)n[/tex]

where

a1 is the first term

an is the last term

n is the number of terms

In this problem

For n=1 ------> a1=2(1)=2

For n=16 ------> an=2(16)=32

n=16 terms

substitute in the formula

[tex]S=\frac{1}{2}(2+32)16[/tex]

[tex]S=272[/tex]

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