85 is composite because it can be divided by 5 and 17
D 100% corect took my test $$$$$$$$$$$$$$
Answer:
0.0023 = 0.23% probability that all 5 balls selected will be the same color
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
The order in which the balls are selected is not important, which means that the combinations formula is used to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.

Desired outcomes:
Either 5 amber from a set of 6, or 5 blue from a set of 5. So

Total outcomes:
5 balls selected from a set of 6 + 5 + 4 = 15. So

Probability:

0.0023 = 0.23% probability that all 5 balls selected will be the same color
Answer:
Step-by-step explanation:
we are given that one angle is 40 degrees. The right angle below that is 90 degrees. Right angles will always equal 90 degrees. with the two angles how do we solve. Triangles no matter what will always be 180 degrees so,
40+90+x=180
130+x=180
-130 -130
x=50 degrees