2. find the sum of the arithmetic series if
a = -94, a26 = -69, and n = 26

The sum of arithmetic series is - 2119 .

Step-by-step explanation:

Given as :

The first term of series = a = - 94

The 26th term of series = = - 69

The number of term = n = 26

Now, Let The sum of arithmetic series =  

So, = × (First term + Last term)

Or,   =   × (a + )

or, = 13 × ( - 94 - 69 )

or, = 13 × ( - 163 )

or,   = - 2119

or, the sum of 26 arithmetic series =   = - 2119

Hence The sum of arithmetic series is - 2119 . Answer

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.