Answer:
The number of times coin thrown was <u>500</u>.
Step-by-step explanation:
Given:
A coin lands on heads 200 times. the relative frequency of heads is 0.4.
Now, to find the times coin was thrown.
Let the number of times coin thrown was be ![x.](https://tex.z-dn.net/?f=x.)
Relative frequency = 0.4.
Number of lands on heads = 200.
So, to get the number of times coin was thrown we put formula:
![Relative\ frequency=\frac{Number\ of\ lands\ on\ heads}{Number\ of\ times\ coin\ thrown}](https://tex.z-dn.net/?f=Relative%5C%20frequency%3D%5Cfrac%7BNumber%5C%20of%5C%20lands%5C%20on%5C%20heads%7D%7BNumber%5C%20of%5C%20times%5C%20coin%5C%20thrown%7D)
![0.4=\frac{200}{x}](https://tex.z-dn.net/?f=0.4%3D%5Cfrac%7B200%7D%7Bx%7D)
<em>By cross multiplying we get:</em>
![0.4x=200](https://tex.z-dn.net/?f=0.4x%3D200)
<em>Dividing both sides by 0.4 we get:</em>
![x=500.](https://tex.z-dn.net/?f=x%3D500.)
Therefore, the number of times coin thrown was 500.
Answer:
x
Step-by-step explanation:
the variable that represents the cost per person is x
Answer:
Step-by-step explanation:
22.95*9.5%= 2.18 tax
22.95+2.18=25.13 total
Answer: [-7,-1]
Explanation:
range of a function is that limit in which variation of any function is possible.
general range of sinx is between [-1,1]
-1
sinx
1 (A)
our required function is y= -3sinx - 4
So, as to obtain this function we will multiply the each side in Equation (A) by -3 we will get
-3
-3sinx
3 (B)
now subtract from 4 from each side of (B) we will get
-7
-3sinx-4
-1
Hence, required range of the given function y= -3sinx-4 is [-7,-1].