Answer:
33.53
Step-by-step explanation:
OB is a radius of the circle, and OC is also a radius of the circle, so both are equal length. That makes ΔOBC an isosceles triangle.
If we cut ΔOBC in half, the angle formed is 125° / 2 = 62.5°.
Therefore:
sin 62.5 = (x/2) / 18.9
x = 37.8 sin 62.5
x ≈ 33.53
Answer:
There are 3478761 ways to select the first 5 numbers
Step-by-step explanation:
As understood from the statement of this problem we assume that it does not matter the order in which the first 5 white balls are selected.
In this case it is a combination.
So, what we want to know is how many ways you can choose 5 white balls out of 55.
Then we use the formula of combinations:
![C(n, x) = \frac{n!}{x! (n-x)!}](https://tex.z-dn.net/?f=C%28n%2C%20x%29%20%3D%20%5Cfrac%7Bn%21%7D%7Bx%21%20%28n-x%29%21%7D)
Where you have n elements and choose x from them.
Then we look for:
![C(55, 5) = \frac{55!}{5!(55-5)!}\\\\C(55, 5) = \frac{55!}{5!(50)!}\\\\C(55, 5) = 3478761](https://tex.z-dn.net/?f=C%2855%2C%205%29%20%3D%20%5Cfrac%7B55%21%7D%7B5%21%2855-5%29%21%7D%5C%5C%5C%5CC%2855%2C%205%29%20%3D%20%5Cfrac%7B55%21%7D%7B5%21%2850%29%21%7D%5C%5C%5C%5CC%2855%2C%205%29%20%3D%203478761)
Well depending on if you really mean OPPOSITE or recipricol. The reciprocal would be -1/15. But the opposite would just be 15
Answer... z + 10 / z^2+ 10
Answer:
12*3 is 36 and (2^2 + 2^3 ) is 12 so you have to get 12 to 36
Step-by-step explanation:
which is 12 *3 so 3