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Vinil7 [7]
3 years ago
7

Find the sum of the first 20 terms

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
7 0

Answer:20.5

Step-by-step explanation:

1.5+1.45+1.40+1.35+1.30+1.25+1.20+1.15+1.10+1.05+1.00+0.95+0.90+0.85+0.80+0.75+0.70+0.65+0.60+0.55=20.5

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Answer:

Mixed fraction = whole × denominator + numerator.

this formula converts mixed to improper fraction.

So, 1 × 3 + 1 = 4 is numerator.

Denominator is 3 which is same.

So, answer is

A. \frac{4}{3}

<h3><em>Plz </em><em>mrk</em><em> me</em><em> brainliest</em><em>.</em></h3>
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3 years ago
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sweet-ann [11.9K]

Answer:

(3x+1)(5x-2)

Step-by-step explanation:

Given the expression

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4 0
2 years ago
The function f(x) = 4(4)x represents the growth of a fly population every year in a remote swamp. Jackie wants to manipulate the
Sauron [17]

The function f(x) = 4(4)x represents the growth of a fly population every year in a remote swamp.

calculates three times a year, not just once a year.

f(x)= 4(4)^x

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so x becomes 3x

f(x)= 4(1+r)^{3x}

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Take log on both sides

log(4)^x=log(1+r)^{3x}

log(4)^x=log(1+r)^{3x}

Use log property and move exponent before log

xlog(4)=3xlog(1+r)}

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take cube root on both sides

1.584740= 1+r

1+r = 1.59

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so equation becomes

f(x)= 4(1.59)^{3x}

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subtract 1 from both sides

So r= 59 = 59%

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Answer is option C



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