3 years ago

The chemical element einsteinium-253 naturally loses its mass over time.

Mathematics

1 answer:

Ray Of Light [21]3 years ago

4 0

Answer:0.81

Step-by-step explanation:

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DedPeter [7]

Answer:

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Step-by-step explanation:

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3 years ago

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A camera has a listed price of $808.95 before tax. If the sales tax rate is 6.25%, find the total cost of the camera with sales

xxMikexx [17]

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Step-by-step explanation:

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3 years ago

Please help AS LEVEL c2 tell me how to work out

Korolek [52]

$\bf [1-tan(\theta)][2sin(\theta)+1]=0\implies 
\begin{cases}
1-tan(\theta)=0\\\\
1=tan(\theta)\\\\
tan^{-1}(1)=\theta\\\\
\qquad \frac{\pi }{4},\frac{5\pi }{4}\\
----------\\
2sin(\theta)+1=0\\\\
2sin(\theta)=-1\\\\
sin(\theta)=\frac{-1}{2}\\\\
sin^{-1}\left(-\frac{1}{2} \right)=\theta\\\\
\qquad \frac{7\pi }{6},\frac{11\pi }{6}
\end{cases}$