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harina [27]
3 years ago
14

Please help I don't understand.

Mathematics
2 answers:
Pavel [41]3 years ago
7 0

Answer:

.20

Step-by-step explanation:

add them up and divide them amount of twins by the sum

Kay [80]3 years ago
6 0
I don’t really know sorry
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Please Help Me! It’s Math! Please!
nadezda [96]

Answer:

D. About 800 years

Step-by-step explanation:

Use the half-life equation:

A = A₀ (½)ⁿ

where A is the final amount,

A₀ is the initial amount,

and n is the number of half-lives.

0.90A₀ = A₀ (½)ⁿ

0.90 = (½)ⁿ

To solve for n, take log of both sides:

log 0.9 = n log 0.5

n = (log 0.9) / (log 0.5)

n = 0.152

It takes 0.152 half-lives.  The half-life of carbon-14 is 5730 years.

0.152 × 5730 years = 871 years

The closest answer is D.

8 0
3 years ago
When solved for x, which inequality represents the number line?
ikadub [295]

Answer:

x<-3

The value of x is found in all the numbers that are less than - 3 or all the numbers from - 3 to negative infinity

Please note: - 3 is not included in those numbers

4 0
2 years ago
Plz help me tyyysmmm
ch4aika [34]

Answer:

60 \sqrt{2}

7 0
3 years ago
What is an angle complimentary of 3?
Sergio039 [100]

Answer:

∠2

Step-by-step explanation:

∠2 + ∠3 = 90°

complimentary angles add up to 90°

3 0
3 years ago
Is 2/9 closer to 1/2 or 1 or 0
SVEN [57.7K]
2/9=0.222
 The answer would be 0.
8 0
3 years ago
Read 2 more answers
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