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My name is Ann [436]
3 years ago
9

Solution to -7+3w=4w-8

Mathematics
1 answer:
Contact [7]3 years ago
8 0
-7 + 3w = 4w - 8

-7 = 4w - 8 - 3w

-7 = w - 8

-7 + 8 = w

1 = w

hope this helped, blessings! :)
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The diameter is a circle is 16in. Find it’s circumference in terms of π.<br><br> C= ________in
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According to the question,

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We are asked to calculate it’s circumference in terms of π.

★ Circumference of circle = 2πr

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Who came up with y=mx+b
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Kryptonite is a material found on the planet Krypton and has various effects, most importantly on Superman. The most common type
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The maximum amount of red kryptonite present is 33.27 g after 4.93 hours.

Step-by-step explanation:

dy/dt = y(1/t - k)

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integrating both sides, we have

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㏑(y/t) = -kt + C

taking exponents of both sides, we have

\frac{y}{t} = e^{-kt + C}  \\\frac{y}{t} = e^{-kt}e^{C} \\\frac{y}{t} = Ae^{-kt}   (A = e^{C})\\y = Ate^{-kt}

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y = Ate^{-kt}\\15 = A(1)e^{-kX1}\\15 = Ae^{-k}(1)

when t = 3 hours, y = 30 grams. So,

y = Ate^{-kt}\\30 = A(3)e^{-kX3}\\30 = 3Ae^{-3k} (2)

dividing (2) by (1), we have

\frac{30}{15}  = \frac{3Ae^{-3k}}{Ae^{-k}} \\2 = 3e^{-2k}\\\frac{2}{3} = e^{-2k}

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y(1/t - k) = 0

Since y ≠ 0, (1/t - k) = 0.

So, 1/t = k

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