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skad [1K]
2 years ago
11

Find the sum of the first 12 terms of geometric sequence 3,-9,27-81,243

Mathematics
1 answer:
Over [174]2 years ago
5 0

Answer:

3, -9, 27,-81,243,-729,2187,-6561,19683,-59049,177147,-531441

the sum is −398,580

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A clothing shop ordered 240 t-shirts. 20% of the shirts are Smalls. How
inessss [21]

Answer:

The answer is 48 small shirts ordered

Step-by-step explanation:

4 0
3 years ago
HELPS PLS ryad borrowed $1450 and made 18 payment of $95.25 how much did he pay in interest?
BaLLatris [955]
First calculate total payments
18×95.25=1,714.5

After that to find the interest you just subtract the amount borrowed from the total payments
Interest=1,714.5−1,450=264.5

Hope it helps!
3 0
3 years ago
A phone company offers two monthly plans. Plan A costs $17 plus an additional $0.09 for each minute of calls. Plan B costs $22 p
Varvara68 [4.7K]

Answer: $53

Step-by-step explanation:

17+ .09m = 9 + .11m

8 = .02m

m = 8/.02= 400 minutes for the two plans to cost the same

9+.11(400) = 9+ 44 = $53 when they cost the same

17+.09(400) = 17 +36  = $53

Please mark brainliest if it helped :)

8 0
3 years ago
How to Find x value: 9-0.75(x+8)-5=-6.5
Dahasolnce [82]
Here's how to find the value of x:

<span>9 - 0.75 ( x + 8 ) - 5 = -6.5      find the difference of 9 - 0.75

</span><span>8.25 ( x + 8 ) - 5 = -6.5           add 5 to both sides
</span>
8.25 ( x + 8 ) = -1.5                distribute 8.25 to x and 8

8.25x + 66 = -1.5                    subtract 66 from both sides

8.25x = -67.5                          divide both sides by 8.25

x = 18.18181818......            the value of x is 18 2/11

hope this helps
8 0
3 years ago
the scale of a map is 1 in :250 miles City A is 378 miles from City B To the nearest tenth how far is its distance on the map
avanturin [10]
1.5 inches. You take 378 and divide it by 250
3 0
3 years ago
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