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2 years ago

8

2,3,1,-2,-3, ....

2 answers:

My name is Ann [436]2 years ago

7 0

The sum of the fust 20 terms in the sequence is 5 because williamwu309 said so

Andreyy892 years ago

5 0

Well, the best way to solve this is maybe just to find a pattern, so 2, 3, 1, -2, -3, -1, 2, 3, 1, -2, -3, -1, so we find out that it repeats and the sum is 0 every 6 terms! Now that we know this, We can just find out the last two digits, which are 2 and 3. So $2 + 3 =$ 5, which is our answer

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2 years ago

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Answer:

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Step-by-step explanation:

Given:

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To find rate of change of volume of cylinder at that instant.

Solution:

Let $r$ represent radius of base of cylinder at any instant.

Rate of increase of base of radius of base of cylinder can be given as:

$\frac{dr}{dt}=7\ mm/hr$

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$V=\pi\ r^2h$

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Plugging in the values given:

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$\frac{dV}{dt}=252\pi$

Using $\pi=3.14$

$\frac{dV}{dt}=252(3.14)$

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2 years ago