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Elodia [21]
3 years ago
8

I don’t understand this

Mathematics
2 answers:
sattari [20]3 years ago
6 0

it is irrational because  it is the square root of a number.

Natalka [10]3 years ago
5 0

√7 is not a perfect square , so it's irrational

Answer is B. irrational numbers

P.S .

Keep in mind that any of non perfect square is irrational

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Artist 52 [7]
1.9 or 1 9/10 

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3 0
3 years ago
Tabitha decided to start saving pennies for a stretch of two months and initially started with 2 pennies. A table showing the nu
svetoff [14.1K]

Answer:

  • after week 7: 4374 pennies
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Step-by-step explanation:

The sequence values have a first term of 6 and a common ratio of 3, so can be described by the formula ...

  an = 6·3^(n-1)

This can be rearranged to ...

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__

When n=7, the value is ...

  a7 = 2·3^7 = 4374 . . . . pennies saved after 7 weeks

__

To find when there are 486 pennies saved, we can solve the equation ...

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  log(243) = n·log(3) . . . . . . . take the logarithm

  log(243)/log(3) = n = 5 . . . . divide by the coefficient of n

Tabitha will have saved 486 pennies after 5 weeks.

7 0
3 years ago
Say what now?! I don’t get this please help!
Nuetrik [128]

Answer:

D)

Step-by-step explanation:

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x = 64/4

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I Hope I've helped you.

7 0
2 years ago
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Answer:

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Step-by-step explanation:

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6 0
3 years ago
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2 years ago
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