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Natasha_Volkova [10]
3 years ago
6

What is the y-intercept of y+4=-1/4(x+2)

Mathematics
2 answers:
Hunter-Best [27]3 years ago
6 0
Get the equation in slope-intercept form.

y + 4 = -\frac{1}{4}(x + 2)
y = -\frac{1}{4}(x + 2) - 4
y = -\frac{1}{4}x - \frac{1}{2} - 4
y = -\frac{1}{4}x -4.5

The y-intercept is (0, -4.5).


m_a_m_a [10]3 years ago
4 0
Y + 4 = -1/4(x + 2)
y + 4 = -1/4x - 1/2
y = -1/4x - 4 1/2

y intercept is at (0, -4 1/2 )
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Recall that m(t) = (1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500g sample of phosphorus-32 decays
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The question is incomplete, here is the complete question:

Recall that m(t) = m.(1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500 g sample of phosphorus-32 decays to 356 g over 7 days. Calculate the half life of the sample.

<u>Answer:</u> The half life of the sample of phosphorus-32 is 14.28days^{-1}

<u>Step-by-step explanation:</u>

The equation used to calculate the half life of the sample is given as:

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where,

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