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timama [110]
3 years ago
15

Trigonometry Unit Circle question (see photo)

Mathematics
1 answer:
zepelin [54]3 years ago
5 0
The answer is Choice A: (cos(theta), sin(theta))

More specifically x = cos(theta) and y = sin(theta) make up the point (x,y) which is where point P is located. Because we have a unit circle, the equation of the circle is x^2+y^2 = 1. This leads to cos^2(theta) + sin^2(theta) = 1 which is the pythagorean trig identity. 
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\qquad \qquad\huge \underline{\boxed{\sf Answer}}

Here, in the given figure. Angle y° forms vertical opposite angle pair with Angle 163°, therefore they have equal values.

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3 0
2 years ago
Eric works in landscaping. He charges a fee of $25 plus $15 per hour. What is the least number of hours he must work in order to
nlexa [21]

Answer:

5 hours

Step-by-step explanation:

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6 0
3 years ago
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If cos 0=2/3, what are the values of sin 0 and tan 0?
morpeh [17]

Answer:

Below

Step-by-step explanation:

● cos O = 2/3

We khow that:

● cos^2(O) + sin^2(O) =1

So : sin^2 (O)= 1-cos^2(O)

● sin^2(O) = 1 -(2/3)^2 = 1-4/9 = 9/9-4/9 = 5/9

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So we deduce that tan O will have two values since we don't khow the size of O.

■■■■■■■■■■■■■■■■■■■■■■■■■

●Tan (O) = sin(O)/cos(O)

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4 0
3 years ago
Hi please help i’ll give brain
NARA [144]

Answer:

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Step-by-step explanation:

This Is how I find the GCF of 2 numbers. I find the prime factorization first, then I find the common factors and multiply them. Here

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The common factors are 2, 2, and 5. We multiply those to get the GCF.

2 × 2 × 5 = 20

7 0
3 years ago
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