3 years ago

Which equation can be used to find how much of a 50 g sample of nitrogen-16 is left after 7 minutes?

Mathematics

1 answer:

miv72 [106K]3 years ago

8 0

Answer:

Step-by-step explanation:

50(0.5) square 50

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4 years ago

1 + 5sin^2x= 7sin^2x solve trig equation. Can you show me how to solve this trig equation?

pantera1 [17]

Answer: $x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

Step by step:

$1 + 5\sin^2x= 7\sin^2x\\\sin^2 x\rightarrow z\\1 + 5z = 7z\\2z = 1\\z = \frac{1}{2}\implies \sin^2 x = \frac{1}{2}\\|\sin x| = \frac{1}{\sqrt{2}}\\\sin x = \pm\frac{1}{\sqrt{2}}=\pm\frac{\sqrt{2}}{2}\\\implies x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}$

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Step-by-step explanation:

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3 years ago

A circle is described by the equation x2 + y2 + 14x + 2y + 14 = 0. What are the coordinates for the center of the circle and the

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Hello,
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4 years ago

Read 2 more answers

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mr Goodwill [35]

Answer:

fiscal year

Step-by-step explanation:

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