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3 years ago

If a cylindrical vessel is 15 cm long and its surface area is 650 cm?, set up an

Mathematics

1 answer:

Lorico [155]3 years ago

3 0

Answer:

2π r(15 + r ) = 650

Step-by-step explanation:

The formula for TSA of cylinder is 2πr (r +h)

The correct equation is

2π r(15 + r ) = 650

hope it helps :)

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Find S5 for a geometric series for which a1=81 and r=1/9.

Minchanka [31]

ANSWER

$S_5=91\frac{10}{81}$

EXPLANATION

The sum of the first $n$ terms of a geometric sequence is given by;

$S_n=\frac{a_1(1-r^n)}{1-r} ,-1$

Where $n$ , is the number of terms and $a_1$ is the first term.

When $n=5$ , we have $a_1=81$ , we get;

$S_5=\frac{81(1-(\frac{1}{9})^5)}{1-\frac{1}{9}}$

$S_5=\frac{81(1-\frac{1}{59049})}{1-\frac{1}{9}}$

$S_5=\frac{81(\frac{59048}{59049})}{\frac{8}{9}}$

$S_5=\frac{7381}{81}$

$S_5=91\frac{10}{81}$

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3 years ago

The cost of a bag of 8 peaches is $16. You could also buy individual peaches for

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Step-by-step explanation:

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The unit rte for a single peach is $2.15

The unit rate for a single peach in the bag of peaches is $2

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3 years ago

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3 years ago

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Answer:

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Step-by-step explanation:

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