<u>Answer:</u>
The correct answer option is: 
<u>Step-by-step explanation:</u>
We know that,
the sum of the first 
terms of an Arithmetic Sequence is given by:
where is the number of terms,
is the first term of the sequence; and
is the first term of the sequence.
So for 
,
and
Putting these values in the formula to get:
<u>First five terms:</u>
=2
=7
=15
=26
=40
Answer:
a.-2>-6
b. -2 is more closer to o and the farther you go from 0 the less value you have
c. City S is warmer because it is farther away from 0 on the number line and is more warmer!!
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Given
, substitute the given values into the expression
= 
= 
= 
= 4
Answer: width = 10 ft
Step-by-step explanation:
Area = length × width
Let l be length and w be width
l = w + 4 ........equation (1)
From above formula
140 = l × w. ........equation (2)
Substitute equation (1) into equation (2)
140 = (w+4) × w
w^2 + 4w= 140
w^2 + 4w - 140= 0
By factorization method
(w+14)(w-10)= 0
w=-14 or w= 10
So now width is 10 ft
From equation(1)
l=w+4
l= 10+4
l= 14 ft
Width = 10 ft and length = 14 ft
