Answer:
2
because ans = 4. and input =half so,4/2 .=2
Answer:
18
Step-by-step explanation:
33-1
3r-9
r3-8
r means random digit
9+8+1=19
Answer:
There are a total of possible 1820 results.
Step-by-step explanation:
Since there are two competitions, one for boys and one for girls, and we want all the possible results we will calculate the possible combinations for the boys and multiply them by the possible combinations for the girls. This is shown below:
![Boys = \frac{15!}{3!(15 - 3)!} = \frac{15!}{3!12!} = \frac{15*14*13*12!}{3!12!}\\Boys = \frac{15*14*13}{3*2*1}\\Boys = \frac{15*14*13}{3*2*1}\\Boys = 455](https://tex.z-dn.net/?f=Boys%20%3D%20%5Cfrac%7B15%21%7D%7B3%21%2815%20-%203%29%21%7D%20%3D%20%5Cfrac%7B15%21%7D%7B3%2112%21%7D%20%3D%20%5Cfrac%7B15%2A14%2A13%2A12%21%7D%7B3%2112%21%7D%5C%5CBoys%20%3D%20%5Cfrac%7B15%2A14%2A13%7D%7B3%2A2%2A1%7D%5C%5CBoys%20%3D%20%5Cfrac%7B15%2A14%2A13%7D%7B3%2A2%2A1%7D%5C%5CBoys%20%3D%20455)
![Girls = \frac{4!}{3!*(4 - 3)!}\\Girls = \frac{4*3!}{3!}\\Girls = 4](https://tex.z-dn.net/?f=Girls%20%3D%20%5Cfrac%7B4%21%7D%7B3%21%2A%284%20-%203%29%21%7D%5C%5CGirls%20%3D%20%5Cfrac%7B4%2A3%21%7D%7B3%21%7D%5C%5CGirls%20%3D%204)
Total number of possible results:
![results = 4*455\\results = 1820](https://tex.z-dn.net/?f=results%20%3D%204%2A455%5C%5Cresults%20%3D%201820)
There are two methods I know. hope it'd help :)
Answer:
14
Step-by-step explanation:
To find x, you will need to use sine. If you want to find y, use cosine:
sin 45 = x / 14 sqrt(2)
x = 14
(Since this is a 45 45 90 special triangle, x and y have the same length)
Since I talk about special triangles, 45 45 90 triangles are very simple:
To find the other two side lengths, just divide the hypotenuse by sqrt 2
14 sqrt(2) / sqrt(2) = 14
So both ways will still lead to 14