8 + 5 = 13
10 + 3 = 13
i think thats what you asking right
Answer:
<h2>0.035</h2>
Step-by-step explanation:
This problem is on probabilty since there are a number of entries to be selected from which are 85 entries, the chances of winning one of the prices if selected is
the number of entries you have/ total number of entries
given that the total entry is 85
and that you have one entry
Since there are three gift baskets you have three chances to win one.
hence there will be a total of three draws, and after each draw, there won't be a replacement of the previous winner (as the winners are three distinct persons).
Hence the probability of winning a draw for the gift basket is
=1st draw+2nd draw+3rd draw
= 1/85+1/84+1/83
= 0.0117+0.0119+0.012
= 0.035
Answer:
15 units
Step-by-step explanation:
Since ΔABC is a right triangle, we can use the Pythagorean theorem to find the missing side, BC as shown below.

Now, since AN is an altitude formed along BC, we can form two smaller triangles that are both similar with ΔABC.
(An image is attached along the file to show the illustrations of the triangles with the larger one.)
Thus, we have ΔNBA~ΔABC and ΔNAC~ΔABC. So, for ΔNBA and ΔABC, we have



and applying the same process with AN, we have



We can also use the same method to find the missing sides in ΔANC. But, we can immediately find the value of NC as shown.


Since ΔANC is a right triangle and two given lengths, we can find the third side, AN, through Pythagorean theorem.

Thus, we have found all the missing sides. The picture attached also shows the missing sides' lengths in red.
Answer: BC = 25, BN = 16, NC = 9, and AN = 12
Answer:
Square
Step-by-step explanation:
You can use the distance formula from one point to another to find that the side lengths are all equals.
You can also graph it and see that it is a triangle.