Answer: 8 centimeters
Step-by-step explanation: To find the radius of the circle, remember that the formula for the area of a circle is πr² and since we're given that the area of our circle is 64π, we can set up the equation 64π = πr².
To solve for <em>r</em>, we first divide both sides of the equation by π.
On the left side, the π's cancel and we're left with 64 and on the right side, the π's cancel and we're left with r².
So we have 64 = r².
Next, we take the square root of both sides to get 8 = r.
So the radius of our circle is 8 centimeters.
Answer:
<h3>d) </h3><h3>
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Step-by-step explanation:
Answer:
The equivalent to one over five m − 20 is one over five (m − 100) ⇒ B
Step-by-step explanation:
Let us solve the question
∵ One over five means 
∴ One over five m - 20 = m - 20
→ By using the distributive property, take one over five as a common factor
from both terms
∴ m - 20 = 
- 
→ Simplify the bracket
∵ m ÷ = m × 5 = m
∵ 20 ÷ = 20 × 5 = 100
∴ - = (m - 100)
∴ m - 20 = (m - 100)
The equivalent to one over five m − 20 is one over five (m − 100)
Answer:
(x-13)(x+3) = f(x) = x^2 -10x -39
Step-by-step explanation:
A circle has a radius of 3 An arc in this circle has a central angle of 20 what is the length of the arc
