Can someone explain how 8.75 multiplied by 0.8 is 7??? It just don't make sense... I don't see why the number got smaller instea
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Let denote the number of packages brought by customer
. If, for instance,
customers are in line, then the total number of packages is
, and
since the number of packages brought by any customer is independent from the number of packages brought by any other.
a. is the probability that a total of 3 packages are waiting to get wrapped from among a total of 3 customers. This means each customer must have exactly one package. So
b. is the probability that a total of 11 packages are brought by 4 customers. The only way for there to be 11 packages is if 3 customers bring 3 packages and the last 1 brings 2. There are
ways this can happen, so
Hello!
This is a problem about relating values of the Unit Circle.
First, we need to figure out the specific "points" of each angle measure of 30 and 60.
For the angle measure 30, the point will be .
For the angle measure 60, the point will be .
The tangent value of a point will be its value over its
value.
The cotangent value of a point will be the reciprocal of the tangent value, which we found previously.
The sine value of a point will be the value of the point.
So the values we have so far are
Now we have to find the LCD to add these together, which in this case would be 6.
Which adds up to , which is in simplest radical form.
Hope this helps!