Answer:
see explanation
Step-by-step explanation:
These are the terms of an arithmetic sequence with n th term
= a + (n - 1)d
where a is the first term and d the common difference
d = 25 - 20 = 30 - 25 = 5 and a = 20, hence
= 20 + 5(n - 1) = 20 + 5n - 5 = 5n + 15 ← n th term formula
Answer:
The length of the longest side is 13mm
Step-by-step explanation:
Represent the two sides with a and b, where a is the longest
Required
Determine the length of the longest side
Perimeter of a kite is calculated as thus:
Make b the subject in
Substitute a - 1 for b and 50 for Perimeter in
Divide through by 2
Add 1 to both sides
Solve for a
<em>Hence, the length of the longest side is 13mm</em>
