Implicit defferentation
remember that dy/dx y= dy/dx
so
take derivitive of both sides
solve for
minus 2x both sides
divide both sides by 2y
when is the slope equal to
solve for
find where the circle and this line intersects
substitute
for y
times both sides by
sqrt both sides, take positive and negative roots
x=+/-10
sub back
the points are (10,-24) and (-10,24)
Take 408/4 because there are 4 faces so that equals 102 m2
Answer:
Option B) 0.797
Step-by-step explanation:
we know that
The probability of an event is the ratio of the size of the event space to the size of the sample space.
The size of the sample space is the total number of possible outcomes
The event space is the number of outcomes in the event you are interested in.
so
Let
x------> size of the event space
y-----> size of the sample space
so
step 1
Find the probability that a randomly selected person was female
In this problem we have
----> total females
---> total males plus total females
substitute
step 2
Find the probability that a randomly selected person was was wearing brown shoes
In this problem we have
----> total brown shoes
---> total shoes
substitute
step 3
Find the probability that a randomly selected person was either female or was wearing brown shoes
Adds the probabilities
Answer:
The answer is D(4, 9)
Step-by-step explanation: