hopeeast8
24.01.2020 •
Mathematics
In an arithmetic sequence {an}, if a1 = 5 and d = 3, find a72.
this is now or never pls фωф
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Ответ:
an = a1 + (n - 1)(d)
where an is the nth term, a1 is the first term, n is the number of terms, and d is the common difference. Substituting the known values,
a72 = 5 + (72 - 1)(3)
a72 = 218
Ответ:
5+2x=2x+6
Step 1: Simplify both sides of the equation.
2x+5=2x+6
Step 2: Subtract 2x from both sides.
2x+5−2x=2x+6−2x
5=6
Step 3: Subtract 5 from both sides.
5−5=6−5
0=1
There are no solutions.