Answer: 7 × ( 3^n - 1 )
Step-by-step explanation:
This is a geometric progression which has its nth term to be
Tn = ar^n- 1. Now from the question given, the sequence are 7, 21, 63, 189. This is an example of a finite sequence, To find the common ratio, you divide the second term by the first term. So
r = 21/7
= 3. , a = 7
Now to find the nth term put the values in the formula above.
Tn =ar^n-1
= 7(3)^n - 1)
= 7 × ( 3^n - 1 ).
Note, it is not 21^n - 1.
Answer:
1. Find the equation for the line that passes through (−2,9) that has slope 7/3 Give your answer in point-slope form. You do not need to simplify. 2. Find the equation of the line with slope = -4 and passing through (-6,29). Write your equation in the form y= 3. Find the equation for the line that passes through the points (7,−4) and (4,9). Give your answer in point-slope form. You do not need to simplify.
Step-by-step explanation:
35 Bananas, becuse if every 2 equals 5, divide 14 by two which equals 7, then muliply 7 by 5.
Answer:
e = -5
Step-by-step explanation:
-9e - 4 > 41
<u> +4 +4</u>
-9e > 45
divide by -9 on both sides
e = -5
Hope dis helped!