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iris [78.8K]
3 years ago
13

PLEASE HELP !! ILL GIVE BRAINLIEST !

Mathematics
1 answer:
fomenos3 years ago
7 0

Answer:

20 + 0i

Step-by-step explanation:

(10 + 5i) + (10 - 5i) = 20 + 0i

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Maggie was doing research for her Ph.D. in physics when a 12 mg sample of radioactive material decayed to 3 mg in 26 minutes. De
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The general way to work this out is to solve the general expression for
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Look at the numbers:

-- 3 mg is  1/4  of  12 mg.

-- 1/4  is the product of  (1/2) x (1/2).

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-- The half-life of that substance is  26/2 = <em>13 minutes</em>.

Go Maggie !

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3 years ago
a jewelry store is having a sale. A ring is now reduced to £840. This is a saving of 40% of the original price. Work out the ori
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7 0
3 years ago
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krok68 [10]
He is 38 kg.


I'll use only the first letters of their names, to make it simpler:

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