3 years ago

Which number is closest to √(80)?

Mathematics

1 answer:

Citrus2011 [14]3 years ago

8 0

Answer:

Step-by-step explanation:

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dem82 [27]

Step-by-step explanation:

we cannot see anything, and you did not describe anything. so, there is nothing to calculate.

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3 years ago

Can someone please explain how to find the answer? My old teacher didn’t do it this way and I’m lost :/

Valentin [98]

Answer:

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3 years ago

Find the 7th term of the geometric sequence: 4, 14, 49, ...

belka [17]

Answer:

Step-by-step explanation:

$a_2=a_1*r=>14=4*r=>r=\frac{7}{2}\\a_n=a_1*r^{n-1}=>a_7=a_1*r^{7-1}=4*(\frac{7}{2})^6=\frac{117649}{16}\\\\a_7=\frac{117649}{16}$

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3 years ago

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Dominik [7]

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3 years ago

Answer Is not C<br>please help

Katyanochek1 [597]

Answer:

Step-by-step explanation:

Well since it is arthimetic sequence we know the formula

We know d is difference between second term and first so it will be -5- (-12)= -5+12= 7

$a_{n}= a _{1}+ d (n-1) \\a_{n}= -12+7(n-1)\\a_{n} = -12+7n-7\\a_{n}= 7n-19$

the domain of this is 1,2,3,4.......

range is -12,-5,2,9.......

Therefore answer is B.

5 0

3 years ago