A. The searchers should cover the greatest area which can be calculated by assuming that the distance covered by the bear for 4 hours is the radius of the circle.
radius = (2 miles/hour)(4 hours) = 8 miles
area = 2(3.14)(8 miles)² = 401.92 mi²
B. I would assume that for this number, we are to solve the additional area to be covered if the bear was last seen 5 HOURS ago.
radius = (2 miles/hour)(5 hours) = 10 miles
area = (2)(3.14)(10 miles)² = 628 mi²
We get the answer for B by subtracting the two areas which will give us an answer of 226.08 mi².
Just think of it as normal subtraction. They both have the same denominators all you need to do is subtract. 11/12-7/12 is 4/12 if you simplify which just means to find the number that both 4 and 12 can go into equally the simplified answer would be 1/3. You just need to divide 4 by both the top and the bottom (numerator and denominator).
You can tell when a number is rational because it can be represented as a fraction. Yes it is a rational number.
Answer:
no sorry
Step-by-step explanation:
for you question there needs to be a picture
48/60
Simplify
4/5
Hope this help