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Katarina [22]
3 years ago
9

Cos(7π/6)= a. 1/2 b.-1/2 c.√3/2 d.-√3/2 Help please?

Mathematics
2 answers:
olga nikolaevna [1]3 years ago
3 0

Answer:

D. -√3/2

Step-by-step explanation:

Remember your unit circle.

Alternatively, you can plug in cos(7π/6) into your calc (Put it in rad mode) and calculate your answer.

Julli [10]3 years ago
3 0

Answer:

D. -√3/2

Step-by-step explanation:

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Step-by-step explanation:

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bearhunter [10]

Answer:

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Step-by-step explanation:

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You went to Walmart and spend $75. Of the total bill, $45.50 included non-taxable items. How much is the final bill if you apply
Alina [70]

We have been given that you went to Walmart and spend $75. Of the total bill, $45.50 included non-taxable items.

Let us find the amount of taxable items by subtracting amount of non-taxable items from total bill.

\text{Amount of taxable items}=\$75-\$45.50

\text{Amount of taxable items}=\$29.50

We have been given that the rate of tax is 7.5% to the taxable items. To find the amount of tax, we will find 7.5% of $29.50.

\text{Amount of tax}=\$25.50\times \frac{7.5}{100}

\text{Amount of tax}=\$25.50\times 0.075

\text{Amount of tax}=\$2.2125  

Final amount of bill would be amount of bill plus amount of tax.

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\text{Final amount of bill}=\$77.2125

Therefore, final amount of bill would be \$77.2125.

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Step-by-step explanation:

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