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adell [148]
2 years ago
11

I have to choose 2 tools

Mathematics
1 answer:
Setler79 [48]2 years ago
6 0

Answer:

scale

Step-by-step explanation:

it would be used to measure

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Show all of your work. Simplify the expression: - 3a + 7 + 5a​
Eva8 [605]

Answer:

2a + 7

Step-by-step explanation:

-3a + 7 +5a

<em>subtract the negative 3 from the 5</em>

2a + 7

4 0
3 years ago
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One of the main contaminants of a nuclear accident, such as that at Chernobyl, is strontium-90, which decays exponentially at a
igor_vitrenko [27]

Answer: P=0.975^t


Step-by-step explanation:

We know that the general form of the exponential decay formula is


y=A(1-r)^t, where y is final amount remaining after t time, A is the original amount and r is the rate of decay


Now, the ratio of strontium-90 remaining, p , as a function of years, t , since the nuclear accident. P=\frac{A(1-0.02)^t}{A}=\frac{(0.975)^t}{1}

Hence, the ratio of remaining since the nuclear accident is P=0.975^t

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3 years ago
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CAN SOMEONE HELP ME WITH THIS???????????
yanalaym [24]

Answer:

See Step by step explanation

Step-by-step explanation:

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8 0
3 years ago
(16+5) + blank = 16 + (5+10)
Murrr4er [49]

Answer:

Im not sure, but I think its like this...

Step-by-step explanation:

(16+5) + 10 = 16 + (5+10)

I hope this is correct!!

3 0
3 years ago
1 /x^−1 in simplest rational form
Allushta [10]
Here is a link to help you find the answer:
https://www.khanacademy.org/math/algebra2/rational-expressions-equations-and-functions/simplify-rati...

Hope this helps!
3 0
3 years ago
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