4 years ago

When calculating your final total including sales tax you must__________?

1 answer:

4 0

<span>In order to find the final total including sales tax, you must multiply the original price by the decimal that represents the tax rate + 1.00.

For instance, if the sale tax rate was 7%, then we would add .07 to 1.00 to get 1.07.

We could then multiply the original price by 1.07. </span>

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Please help me with these questions! Thanks

sergiy2304 [10]

You can use this rule

3 0

3 years ago

PLEASE can someone explain why The exact value of sec ( π/6) is 2 /√ 3 ??

Umnica [9.8K]

$\bf sec\left( \frac{\pi }{6} \right)\qquad recall\to sec(\theta)=\cfrac{1}{cos(\theta)}\qquad thus
\\\\
sec\left( \frac{\pi }{6}\right)\iff \cfrac{1}{cos\left( \frac{\pi }{6}\right)}
\\\\\\
\textit{check your Unit Circle for what the }cos\left( \frac{\pi }{6}\right)\ is
\\\\\\
\cfrac{1}{\frac{\sqrt{3}}{2}}\implies \cfrac{\frac{1}{1}}{\frac{\sqrt{3}}{2}}\implies 
\cfrac{1}{1}\cdot \cfrac{2}{\sqrt{3}}\implies \cfrac{2}{\sqrt{3}}$