HI,
The Answer to this question is:
B) $968.80
Hope This Helps!
Answer:
arc DB length = 14π feet
Step-by-step explanation:
Assuming point A is the center of the circle, arc DC has measure 180°. Arc DB has measure 40° less, so is 140°. Since you want this in terms of π, we need to convert the degree measure to radians. We do that by multiplying by (π/180) radians per degree:
arc DB = 140° = 140°(π/180°) radians
__
Now that we know the arc measure in radians, we can find the length of the arc. It is given by the formula ...
s = rθ
where r represents the radius and θ is the measure of the arc in radians.
The arc length is ...
s = (18 ft)(7π/9) = 14π ft
Arc DB has a length of 14π feet.
Answer:
3
Step-by-step explanation:
The logarithm of a quotient can be written as a difference of logarithms:

You can also think of this as a combination of the product-to-sum and reciprocal/power properties of logarithms:

To summarize,



If you do 220-40 then the second digit of the negative number will equal x.