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Afina-wow [57]
3 years ago
10

Find the value of each variable using sine and cosine. Round your answer to the nearest tenth.

Mathematics
1 answer:
Mandarinka [93]3 years ago
8 0
Cos 36° = r/5

5*cos 36° = r

4.0450849719 = r

4.0 = r

sin 36° = s/5

5*sin 36° = s

2.9389262615 = s

2.9 = s

Done!
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Step-by-step explanation:

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The sum of the heights of two brothers is 10 feet, 4 inches. The difference between their heights is 10 inches. How tall is the
Leona [35]

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4.5 ft

Step-by-step explanation:

Let us assume the height of the taller brother be x

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Find the domain and range of the function
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Answer:

domain: (-∞ , ∞)

range: (-∞, 2]

Step-by-step explanation:

the domain is the set of values of what the x value can be. This function is parabolic and upside down, it can have a range of x values from - infinity to positive infinity. The function is most likely y=-x^2 +2

range is the output (y values) the function can possibly have. the max is 2 and includes 2 so we use bracket for that. The smallest y value can reach towards negative infinity.

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How to find domain and range of a parabola?
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The domain is the value of x, the range is the value of y.
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Vertically, however, a parabola opens only one way, either upward or downward. when it opens upward from a a certain level, say, the lower point (the vertex) has a y coordinate of 2, we say the range is all real numbers larger than or equal to 2, or y≥2. When it opens downward, we say the range is all real numbers smaller or equal to 2, y≤2
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3 years ago
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