Answer:
5600
Step-by-step explanation:
Answer:
The nth term for the given sequence can be written as:

Step-by-step explanation:
Notice that this arithmetic sequence is created by adding to each term a common difference of 6 units:
7 + 6 = 13
13 + 6 = 19
19 + 6 = 25
Then, using the general expression for the nth term of an arithmetic sequence of first term "
" and common difference "<em>d</em>" we can write the nth term as:

which in this case translates as:

Answer:

Step-by-step explanation:
Given:
The area 'A' of a circle with radius equal to 'r' is given as:

In order to rewrite the given formula in terms of radius 'r', we need to isolate 'r'.
Dividing both sides by π, we get:

As
, the above equation becomes:

Taking square root both the sides, we get:

We neglect the negative result while taking square root as the radius can't be a negative number.
Thus, the formula for radius 'r' in terms of area 'A' is given as:

The equation
a/4 = 2/3
do cross multiplication
8 = 3a
a = 8/3
Performing the expression.
= (a - 4) / 4
= (8/3 - 4) / 4
= (8-12 / 3)/4
= -4/3 / 4
= -1 / 3
So the answer is letter b.