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Vedmedyk [2.9K]
3 years ago
10

Somebody who knows how to do this?? plz answer all the questions correctly thanks!

Mathematics
1 answer:
Ksju [112]3 years ago
4 0

Answer:

a) 5/21

b) 4/21

c) 4/21

d) 8/21

Step-by-step explanation:

total number of coins: 21

a) number if dollars: 5

therefore fraction is 5/21

b) number of quarters: 4

therefore fraction is 4/21

c) number of dimes: 4

therefore fraction is 4/21

d) number of nickels: 8

therefore fraction is 8/21

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Find the exact values of a) sec of theta b)tan of theta if cos of theta= -4/5 and sin&lt;0
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Answer:

Using trigonometric ratio:

\sec \theta = \frac{1}{\cos \theta}

\tan \theta = \frac{\sin \theta}{\cos \theta}

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Using trigonometry identities:

\sin \theta = \pm \sqrt{1-\cos^2 \theta}

Substitute the given values we have;

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Since, sin < 0

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now, find \tan \theta:

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