Given that a/b = 3/5 and b/c = 4/5 Find a:b:c
1 answer:
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Answer:
A.
B.
C. Both sides will continue to increase as they go because this is an even degree quadratic equation.
D. You use the two x-intercepts to make sure it is in the correct area and since we know the end behavior all you'd have to assume is that it continues to go up so any negative answers you may accidentally receive would be incorrect.
Given:
The sum of the first three terms of a sequence Is 42.
The fourth term is 24.
To find:
The u₁ and the common difference
Step-by-step explanation:
nth term of a sequence is
where, u₁ is first term and d is common difference.
4th term is 24.
...(i)
Sum of nth term of an AP is
Sum of first three terms is 42.
Divide both sides by 3.
...(ii)
On subtract (ii) from (i), we get
Put d=5 in equation (ii).
Therefore, the first term is and common difference is
.