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jeka57 [31]
3 years ago
10

WILL GIVE BRAINLIEST FOR THE RIGHT ANSWER!!

Mathematics
1 answer:
vredina [299]3 years ago
7 0

Answer:

19 gram

Step-by-step explanation:

Formula of mass left after ionising: \frac{M}{2^{n} }  where M is original mass and n is half lives.

Using the equation:

\frac{150}{2^{3} } → 18.75

Therefore, 18.75 g left after ionising.

∵ If rounded to nearest gram then 19 gram.

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I hope this helps you

6 0
4 years ago
What are the values of a, b, and c in the quadratic equation 0 = = x2 – 3x – 2?<br> a=1 h=30-2
jek_recluse [69]

Answer:

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  • c = -2

Step-by-step explanation:

The general form of a quadratic equation is often written as ...

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The references to "a", "b", and "c" are to the coefficients in this form. Comparing this to your equation ...

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7 0
4 years ago
I used to be able to know how to do this, but apparently not.
VARVARA [1.3K]
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6 0
3 years ago
Read 2 more answers
Select the expressions that are equivalent to -5(-9b)
jeka57 [31]

Answer:

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Step-by-step explanation:

8 0
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