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vampirchik [111]
3 years ago
13

Use the formula to evaluate the infinite series riund to the nearest hundredth if necessary 9+3+1+

Mathematics
1 answer:
VikaD [51]3 years ago
6 0
Sum to infinity  =  a1 / ( 1 - r)   (This is a geometric series  a1 = first term, r = common ratio)

Here r = 3/9  = 1/3 and a1 = 9 

So the answer is 9 / (1 - 1/3)  = 9 / 2/3 = 9 * 3/2 = 13.5 Answer
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Answer:

this is the anwser

Step-by-step explanation:

4 12 13 triangle

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Semiperimeter: s = 14.5

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Angle ∠ B = β = 66.782° = 66°46'55″ = 1.166 rad

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Circumradius: R = 6.529

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Centroid: CG[4.859; 1.225]

Coordinates of the circumscribed circle: U[6.5; -0.612]

Coordinates of the inscribed circle: I[2.5; 1.648]

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∠ A' = α' = 162.161° = 162°9'41″ = 0.311 rad

∠ B' = β' = 113.218° = 113°13'5″ = 1.166 rad

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Answer:

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Step-by-step explanation:

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