What is the square root of 80 simplified to?
1 answer:
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Answer:
The angle subtended by the arc is 171.8873385 degrees (3 radians)
Step-by-step explanation:
The formula of the length of an arc of a sector is L = × 2 π r, where
- x is the central angle subtended by the arc
- r is the radius of the circle
∵ An arc of a sector is three times its radius
∴ L = 3r
→ Equate the formula of the length of the arc by 3r
∵ × 2 π r = 3r
→ Divide both sides by r
∴ × 2 π = 3
→ Simplify the left side
∵ x = 3
→ Divide both sides by
∴ x = 171.8873385°
∴ The angle subtended by the arc is 171.8873385 degrees (3 radians)
Given:
The equation is
To find:
The y-intercept (in ordered pair).
Solution:
We have,
Putting x=0, we get
Divide both sides by 4.5.
So, y-intercept is 4.
Therefore, the graph intersect the y-axis at (0,4).