4 years ago

URGENT PLEASE HELP!!!

Mathematics

2 answers:

Naily [24]4 years ago

7 0

15.7 feet
and you are welcome

sukhopar [10]4 years ago

4 0

Answer:

B 15.7

Step-by-step explanation:

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2 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

r-ruslan [8.4K]

Step-by-step explanation:

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3 years ago

Help!!! il give brainlist

garik1379 [7]

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1 || 20
2 || 40
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3 years ago

Sven can type 30 words per minute.How many words would he type in 20 minutes?

saveliy_v [14]

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3 years ago

Determine the sum of the arithmetic series: 5+18 +31 +44 + ... 161.

Finger [1]

Answer:

1079

Step-by-step explanation:

Hello,

18-5 = 13

31-18=13

44-31=13

161=5+13*12

So we need to compute

$\displaystyle \sum_{k=0}^{k=12} \ {(5+13k)}\\\\=\sum_{k=0}^{k=12} \ {(5)} + 13\sum_{k=1}^{k=12} \ {(k)}\\\\=13*5+13*\dfrac{12*13}{2}\\\\=65+13*13*6\\\\=65+1014\\\\=1079$

Thanks

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3 years ago