Answer:
3/20 or 0.15 or 15%
Step-by-step explanation:
Since 3 red marbles were drawn out of 20 outcomes, the probability the next marble will be red is 3/20. If you convert it to a decimal it will be 0.15, and if you convert it to a percent it will be 15%.
A 90 degree rotation about its center
Answer:
8 (n - 3) = 65
Step-by-step explanation:
the difference of a number and three means n - 3
8 times the difference of means that it will be 8 and then parenthesis the next terms that are said, so 8 (?)
is sixty-four means = 64
so put it together and you have 8 (n - 3) = 65
The surface is parameterized by
and the normal to the surface is given by the cross product of the partial derivatives of 
:
It looks like you're given
Then the normal vector is
Now, the point (2, 2, 0) corresponds to u and v such that
and solving gives 
, so the normal vector at the point we care about is
Then the equation of the tangent plane is
Her new weekly range would be 874€ because she works 38 hours a week and you would do 23 times 38.
