Answer: r≈5.73 ft
Step-by-step explanation:
The formula for circumference is C=2πr or C=πd. These 2 equations are equivalent to each other because 2r is d. This problem is asking for radius so we can ignore C=πd.
With 36 ft circumference, we can find the radius by plugging 36 into circumference.
36=2πr
r=36/(2π)
r≈5.73 ft
Answer:
B
Step-by-step explanation:
I chose the answer B because there is no there should be no exponents to make the answer linear
Answer:
410 grams
Step-by-step explanation:
good
Let events
A=Nathan has allergy
~A=Nathan does not have allergy
T=Nathan tests positive
~T=Nathan does not test positive
We are given
P(A)=0.75 [ probability that Nathan is allergic ]
P(T|A)=0.98 [probability of testing positive given Nathan is allergic to Penicillin]
We want to calculate probability that Nathan is allergic AND tests positive
P(T n A)
From definition of conditional probability,
P(T|A)=P(T n A)/P(A)
substitute known values,
0.98 = P(T n A) / 0.75
solving for P(T n A)
P(T n A) = 0.75*0.98 = 0.735