Answer:
2.72 is the shortened version.
Step-by-step explanation:
for the step by step explanation
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https://www.calculatorsoup.com/calculators/math/longdivisiondecimals.php
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4.2x - 1.4y = 2.1 |multiply both sides by 10
42x - 14y = 21 |subtract 42x from both sides
-14y = 21 - 42x |change signs
14y = 42x - 21 |divide both sides by 14
y = 3x - 1.5
A-14
B-9
C-115
Hoed this helps
If the recursive formula is a(n)=a(n-1)+3 and a1=2 then the explicit formula is:
a(n)=2+3(n-1) which simplifies to
a(n)=2+3n-3
a(n)=3n-1 so the first three terms are a(1), a(2), and a(3) which are:
2, 5, and 8