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zloy xaker [14]
2 years ago
8

Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had decreased by 2%. If the rate of deca

y is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (Round your answer to one decimal place.)
Mathematics
1 answer:
lyudmila [28]2 years ago
7 0

The half-life of the radioactive substance is 67.95 hours.

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Step-by-step explanation:

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How you do multiply complex numbers ? Example : (9 - 4i) (8 + 6i)
Andrew [12]

You multiply them just as you would multiply any normal polynomials, except there is a special rule. Since we know that i = √-1, the rule is that i² = -1. So, let's multiply:

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6 0
3 years ago
What is 9x2/4 it is fraction
gregori [183]
\frac{9}{2}....................
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3 years ago
What 3 digits are in the units period 4,083,817
Dmitry_Shevchenko [17]
So the answers 3,000 cause it said period i mean unit period
6 0
3 years ago
Read 2 more answers
HELP FAST
evablogger [386]

Answer:

  D)  5/12

Step-by-step explanation:

Suppose there are 30 girls at the school. Then the proportions tell you that 12 of them study music, and 5 of them study both music and dance.

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_____

We chose 30 because it is the least common multiple of the denominators of the fractions (2/5, 3/5, 1/6) in the problem statement.

Of course, you know that 2/5·30 = 12, and 1/6·30 = 5.

7 0
3 years ago
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