Answer:
K = 3
a = 6
Step-by-step explanation:
F is directly proportional to a
That’s F = Ka
K is the constant
Divide both sides by a to get the constant k
K = F/a
When F = 24 and a =8
K = 24/8
= 3
When F = 18
a = ?
F = Ka
18 = 3 x a
18 = 3 x a
Divide both sides by 3
18/3 = 3 x a /3
6 = a
a = 6
Answer:
24 meters
Step-by-step explanation:
The area of a circle can be found using the following formula.
We know that the area is 144pi m^2.
Substitute 144pi m^2 in for a.
We want to find the diameter. First, we must find the radius. We have to get the variable, r, by itself.
Divide both sides of the equation by pi.
The variable, r , is being squared. The inverse of a square is the square root. Take the square root of both sides of the equation.
The radius of the circle is 12 meters, but the question asks for diameter. The diameter is twice the radius.
The radius is 12 m.
Multiply
The diameter of the circle is 24 meters.
Unbiased. If it was biased then she would only choose people she wanted to answer her survey. It is unbiased because she is asking the first 10 random people who walk into her shop.
The answer is 20
Your welcome