What is the sum of the terms of the series (-1) + (-2) + (-3) + + (-10)? a. -110b. -55c. -22

Step-by-step explanation:

The given series is

The first term of this arithmetic sequence is

the last term is  

The sum of the first n-terms is given by

The first 10 terms is

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140