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zysi [14]
3 years ago
5

Select three ratios that are equivalent to 7: 6.

Mathematics
1 answer:
marusya05 [52]3 years ago
8 0
21:18, 42:36, 63:54. Dddddddd
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Calcium-41 is being used in studies testing the effectiveness of drugs for preventing osteoporosis. The half-life of calcium-41
Leviafan [203]

Answer:

332,193 years

Step-by-step explanation:

From the question above, we are to calculate the time in an half life question, hence, the formula is given as

t = In(Nt/No) ÷ -(In2/t½)

Where

t = time is takes for an substance to decay or reduce

Nt = Amount of sample after time = 2g

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Hence,

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Equivalent expression for 7a+21
Mila [183]

Answer:

Step-by-step explanation:

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7 × (a+3)

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Find the roots of f(x)=2x^2+7x+3 by using the quadratic formula
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Step-by-step explanation:

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