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Elina [12.6K]
3 years ago
14

Given that cos 0 = and sin 0 = - 15 What is the value of tan0?

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
3 0

Step-by-step explanation:

\because \:  \cos \theta = \sin \theta =  - 15 \\  \\  \therefore \:  \:  \: \cos \theta = - 15 \:  \:  \\  \:  \:  \:  \:  \:  \:  \: and \:  \:  \\  \:  \:  \:  \:  \:  \:  \:  \:  \sin \theta =  - 15  \\ \therefore \:  \frac{\sin \theta }{\cos \theta}  =  \frac{ - 15}{ - 15} \\ \therefore \:   \huge \purple{ \boxed{\tan \theta  = 1}}

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Kay has 28 coins which includes nickels and dimes if the total is 2.35$, how many of each coin does Kay have?
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Answer:

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Step-by-step explanation:

Model the situation using two equations, then solve the system.

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Now we can substitute this equation into the other one.

Sub n =28-d at the "d" variable for the equation 0.05n + 0.10d =  2.35

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Now there is only one variable.

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0.05(28 - d) + 0.10d =  2.35

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Now that we know d=19, we can substitute it into any equation.

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