Answer: 
Step-by-step explanation:
given data:
number of balls = 65.
special black ball that is picked from 10 other balls = numbered 0-9.
<u><em>Solution:</em></u>
<em>probability that a single lottery ticket will match 2 balls and the special black ball.</em>

Answer:
49
Step-by-step explanation:
n is 3/7 of total fruit
n=21 apples
Here they are just telling us that the apples make up a total of 3/7 percent of the total fruit in the box. So to find the total amount of fruit from this information we just simply take the n number of apples and divide that by the percent that it represents. So basically just this;
n=21 and (n)/(3/7)=total fruit
(21)/(3/7)=21*7/3=147/3=49 total fruit and 21apples make up (3/7)% of the total fruit in the box.
Hope this helped some. Any questions please feel free to ask. Thanks!
Answer:
x=8.2
Step-by-step explanation:
First, figure out which trig function you are going to use.
In this problem you are dealing with the opposite side to the angle and the hypotenuse, and if you remember SOH CAH TOA, this requires sine.
sin (55) =opposite/hypotenuse
sin (55) =x/10
multiply both sides by 10 to get 10 * sin (55) = x
10 * sin (55) = 8.2
9. 2.86600.... that is all i know so far