an explicit formula for the arithmetic sequence -5,13,31,49 is .
<u>Step-by-step explanation:</u>
Here we have an arithmetic sequence -5,13,31,49 . We need to find an explicit formula for the arithmetic sequence .Let's find out:
Let be terms of an A.P , common difference is :
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We know that general term of an Arithmetic Progression ( A.P) is :
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So , Here we will have
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Therefore , an explicit formula for the arithmetic sequence -5,13,31,49 is .
Answer:
60
Step-by-step explanation:
2/3*d=40
d=40*3/2
d=60
Answer:
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Step-by-step explanation:
- 2a -12
Answer: x = 13/5
Explanation:
(x+4)/(3x+1) = 3/4
Cross multiply:
4(x+4) = 3(3x+1)
4x + 16 = 9x + 3
4x - 9x = 3 - 16
-5x = -13
x = -13/-5
x = 13/5