3 years ago

An arithmetic series has seven terms. the first term is 5 and the last term is 53. find the sum of the series!

1 answer:

5 0

The easiest way is to use (& to memorize) the sum formula for a AP:

Sum = 1st term added to the last term & multiplied by half the number of terms
S = (a+l)n/2

S = (5 + 53)(7/2) = 203

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Add the integers. 1. -2 +(-5) 2. -2 +(-2) 3. -13 +9

Maru [420]

-7 because when it’s +(-) it’s always the same as the outside sign
-4 same thing explained above
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hope this helps

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2 years ago

The sink in Josh’s art studio measures 16 inches by 15 inches by 6 inches. A second sink used just for paint brushes has a simil

marin [14]

Linear scale factor =1/2
volume scale factor=(1/2)³=1/8
the volume of the larger figure will be:
volume=length*width*height
volume=16×15×6
volume=1440 cubic inches
thus volume of the small sink will be:
1/8×1440
=180 cubic inches

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3 years ago

3. A rectangular piece of paper has a length of 6 inches and a width of 3 inches.

Ulleksa [173]

Answer

Step-by-step explanation:

The area is width x hight. 6x3=18

5 0

3 years ago

Read 2 more answers

Can someone help me?

IrinaK [193]