Title:
<h2>See the explanation.</h2>
Step-by-step explanation:
The coin is to be flipped 2000 times.
The probability of getting a head is 0.3.
It is given that, we need to get a head in between 575 and 618 times.
If we will get 575 heads then we will get (2000 - 575) tails.
Hence, if we take that we want to get n times head, then we will get (2000 - n) times tail.
The probability of not getting a head is (1 - 0.3) = 0.7.
The probability of getting n times head is 
.
The required probability is ∑ , where 
.
SinØ(TanØ+2)=3cosØ -----[pulling like terms out]
for the following steps The easiest 4 me is that I just plug in values between 0° and 180° for Ø and see which will help me to get equal numbers on both sides.
So, for instance if you use Ø=90°, you'll get the following, Sin90(Tan90+2)=3cos90
========> 1(1+2)=3(1) ==> 3=3
so 90° is one of the solutions ur looking for.
hope this was helpful
Answer:
B: 112.5
Step-by-step explanation:
first, we split up the rhombus into two triangles, with the height of 15 and the length of 7.5. when you multiply these you will get 112.5, and normally if you are just getting the area of the triangle, then you would divide it by two, but seeing that we have 2 triangles here, we would multiply it by two afterwards so an easier way to do it is just to not divide.
Answer:
Step-by-step explanation:
50 *0.4 = 20 tables seat 2
50-20 = 30 tables seat 4
30*4 = 120
20*2 =40
120 +40 = 160 seats total
