Well, there are 13 places that each horse can place. That means the first place has 13 options, second place has 12 options, third place has 11 options, etc. Though, we only care up to fourth place. When doing probability, we're multiplying in this case. So, here's the process:
How many ways all the horses can place = 13! = 6227020800
How many ways the first four places can place = 13*12*11*10 = 17160
Divide the second by the first and multiply by 100 for the probability as a percent:
(17160/6227020800)*100% ≈ <span>0.00027557319%
</span>
<u>Answer</u>
12
<u>Explanation</u>
Cosine is the ratio of adjacent to hypotenuse.
So, in this case b is the adjacent and 13 is the hypotenuse.
cos22.6 = b/13
b = 13×cos22.6
= 13×0.923879532
=12.010
To the nearest whole number the answer is 12.
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Answer:
D natural, whole, integar, rational
Answer:
36 pencils
Step-by-step explanation:
Given
Cost Price = 180
Represent the number of items by x
This implies that the cost of each item is 
Since all but 6 items were sold, the total selling price is:
This amount can be used to buy 30 more items.
So, we have:
Multiply both sides by 180
Expand brackets
Equate to 0
Expand
or 
or 
<em>Since, number of items can't be negative, we have to discard x = -210.</em>
Hence:
<em>We can then conclude that, Mr. Javier purchased 36 pencils</em>
Recall that
