Answer:
a + 4(n-1)
Step-by-step explanation:
The first term is a+4, the second term is a+8, the third term is a+12, etc.
A common theme that we can notice is that we add 4 for each term. For example, the second term (t₂) equals t₁+4, the third term equals t₂+4 (as a+4+4 = a+8), and so on. Another way of writing this is that we multiply 4 by (term number - 1) and add that to a. We can write this as
4 * (n-1) + a
If you multiply the 300 by 10 it becomes 3000
Answer:
432 tiles
Step-by-step explanation:
First, convert the dimensions of the table to inches.
There are 12 inches in a foot, so multiply 1.5 and 2 by 12.
1.5(12) = 18
2(12) = 24
So, the dimensions of the table in inches are 18 by 24.
Find the area of the table using the formula, A = lw
A = lw
A = (18)(24)
A = 432
So, the area is 432 square inches.
Since each tile is one square inch, the table will fit 432 of these.
So, Ravi will need 432 tiles.
Answer:
Hope this helps :D
The answer is 27(If i`m not mistaken)
Answer:
S₁₂ = - 654
Step-by-step explanation:
there is a common difference between consecutive terms , that is
- 14 - (- 5) = - 23 - (- 14) = - 32 - (- 23) = - 9
this indicates the series is arithmetic with sum to n terms
= 
[ 2a₁ + (n - 1)d ]
where a₁ is the first term and d the common difference
here a₁ = - 5 and d = - 9 , then
S₁₂ = 
[ (2 × - 5) + (11 × - 9) ]
= 6(- 10 - 99 )
= 6 × - 109
= - 654
