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mestny [16]
3 years ago
8

-2 3/4 + (-1 1/3) I need this for a test pls help

Mathematics
1 answer:
BaLLatris [955]3 years ago
8 0

Answer:

-77/12,    -6 5/12,    or   -6.416

Step-by-step explanation:

convert

calculate

done

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The 16th term of an A.P. is 40 and the sum of the first 5 terms is 5. Find the sum of the first 50 terms.
KiRa [710]

Answer:

The sum of first 50 terms is 3425.

Step-by-step explanation:

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Now we know that the sum of first 'n' terms of the A.P is given by

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Thus the sum of first 50 terms euals

S_{50}=\frac{50}{2}[2\times -5+(50-1)3]\\\\S_{50}=3425.

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Step-by-step explanation:

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