Answer:
Step-by-step explanation:hhhhh
Answer:
b = -9
Step-by-step explanation:
-12 = 24 + 4b 
Subtract 24 from both sides
-12 - 24 = 24 + 4b - 24
-36 = 4b Divide all sides by 4
-36 ÷ 4 = 4b ÷ 4
-9 = b
-Chetan K
<u>7.1 cm long is the arc</u><u> intersected by a central angle .</u>
What is length of an arc?
- The arc length of a circle can be calculated with the radius and central angle using the arc length formula.
- Length of an Arc = θ × r, where θ is in radian. Length of an Arc = θ × (π/180) × r, where θ is in degree.
Given,
Central angle = π / 2
radius = 4.5 cm
we apply formula of length of arc.
length of the arc = angle × radius
= (π/2) × (4.5 cm)
Now put value of π = 3.14
length of the arc = (3.14 / 2) × (4.5) cm
= 7.065 cm ≈ 7.1 cm
Therefore, 7.1 cm long is the arc intersected by a central angle .
Learn more about<u> </u> length of an arc
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The answer to your question would be y2 +5y.
