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dusya [7]
2 years ago
13

Which expression is equivalent to squareroot 36/25

Mathematics
1 answer:
BARSIC [14]2 years ago
7 0

The correct answer would be: 6/5

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Quadrilateral PQRS is located at P (0, 1), Q (3, 2), R (4, 0), and S (1, −1). Russell and Jamie have both classified PQRS differ
dybincka [34]

Answer: Jamie

Step-by-step explanation:

Bcuz I took the test and made sure it was Jamie

3 0
3 years ago
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he radioactive element​ carbon-14 has a​ half-life of 5750 years. A scientist determined that the bones from a mastodon had lost
elena-s [515]

Answer:

The bones were 12,485 years old at the time they were​ discovered.

Step-by-step explanation:

Amount of the element:

The amount of the element after t years is given by the following equation, considering the decay rate proportional to the amount present:

A(t) = A(0)e^{-kt}

In which A(0) is the initial amount and k is the decay rate, as a decimal.

The radioactive element​ carbon-14 has a​ half-life of 5750 years.

This means that A(5750) = 0.5A(0), and we use this to find k. So

A(t) = A(0)e^{-kt}

0.5A(0) = A(0)e^{-5750k}

e^{-5750k} = 0.5

\ln{e^{-5750k}} = \ln{0.5}

-5750k = \ln{0.5}

k = -\frac{\ln{0.5}}{5750}

k = 0.00012054733

So

A(t) = A(0)e^{-0.00012054733t}

A scientist determined that the bones from a mastodon had lost 77.8 ​% of their​ carbon-14. How old were the bones at the time they were​ discovered?

Had 100 - 77.8 = 22.2% remaining, so this is t for which:

A(t) = 0.222A(0)

Then

0.222A(0) = A(0)e^{-0.00012054733t}

e^{-0.00012054733t} = 0.222

\ln{e^{-0.00012054733t}} = \ln{0.222}

-0.00012054733t = \ln{0.222}

t = -\frac{\ln{0.222}}{0.00012054733}

t = 12485

The bones were 12,485 years old at the time they were​ discovered.

8 0
3 years ago
What is 32 divided by 608
aalyn [17]
19 you could’ve just used the calculator lol
5 0
2 years ago
Read 2 more answers
⅜ and 11\12 greater than less than or equal
maks197457 [2]

Answer:

3/8 is less than 11/12

Step-by-step explanation:

3/8 is 0.375 as a decimal

11/12 is 0.92 as a decimal

so 3/8 is less than 11/12

It always helps to turn them into decimals...

6 0
3 years ago
Raheem made a net of a triangular pyramid as shown.
Cerrena [4.2K]

Answer:

the answer is b

Step-by-step explanation:

i took the test it is b. The sum of the areas of faces A, B, and C.

5 0
3 years ago
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