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Artemon [7]
3 years ago
14

Find Sn for the given series if: a1=22 d=-8 n=21 F)1911 G)-1449 H)-2436 I)-1218

Mathematics
1 answer:
GuDViN [60]3 years ago
3 0

3∑x=2 72x5∑x=3 −2x−23∑x=3 −1x2

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3 2/3 of 4/5 of pizza equals how many pizza
Reil [10]

Answer:

11/3 x 4/5 = 44/15 = 2 14/15

7 0
3 years ago
A book designer decided that the pages of a book should have 1-in. margins at the top and bottom and 1 2 in. margins on the side
alexgriva [62]

Answer:

A = 54.8 - (1200/x) - 2x

Step-by-step explanation:

Given <em>x</em> the wide and <em>y</em> the height, we have

x*y = 50

⇒  y = 50/x

The area of the printed region is A = w*h

where

Wide: w = (x-2*1.2) = x-2.4

Height: h= (y-2*1) = y-2

then

A = (x-2.4)(y-2) = xy - 2.4y - 2x + 4.8 = 50 - 24*(50/x) - 2x + 4.8

⇒  A = 54.8 - (1200/x) - 2x

5 0
3 years ago
Please help<br> See the picture <br> Twst
erik [133]

Answer:

7

Step-by-step explanation:

1. Use sine law to solve

3/sin35 = x/sin55

3sin55/sin35 = 7

6 0
2 years ago
हवा से भी तेज चलने वाला कौन है​
nevsk [136]

Step-by-step explanation:

हवा से भी तेज चलने वाली रोशनी है।

light travels faster than air

3 0
3 years ago
A school is having a canned food drive. Each class is challenged to collect 220 cans. If there are x classes in the school, whic
lara31 [8.8K]

Answer:

B)

Step-by-step explanation:

no. of Classes = x

cans = 220

220×x = 220x

no.of classes × cans = total number of cans

5 0
2 years ago
Read 2 more answers
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