Answer: The correct answer is B) 21%
Step-by-step explanation:
This is a binomial model probability problem. We need to find the probability of 6 out of 10 new births at a hospital being boys. The information we need is the number of trials observed, the number of successes and the percentage chance you have of any birth being a boy. The number of trials are 10, with the number of successes being 6 (the number of trials we want to be boys) It states that 51% or 0.51 of all births in the US are boys so we can use this value to determine our answer using our binomial model formula. After simplifying we get our answer of 21% I hope this has been of use to you :)
Have a wonderful rest of your day!
Answer:
How far does Ali want to go
Step-by-step explanation:
Scalene triangle, Equilateral Triangle, Right Triangle, and Isosceles Triangle
1. This function goes trough 3 points: ( 0,0),(8,0) and (4, -8) so we have to find f(0)=0, f(8)=0, f(4)= -8
f(0)= c=0✔️
f(8)=64 a +8b=0 divide by 4; 16a+2b=0 (1)
f(4)=16a+4b=-8 divide by 4; 4a+b= -2 (2)
From(2)
b=-4a-2
Substitute b in (1)
16 a+2( -4a-2)=0; 16a-8a-4=0; 8a=4
so a=1/2✔️
b=-2-2= -4✔️
The quadratic function is:
f(x)=(X^2)/2 -4x=0
2. This quadratic function goes trough points ( 2,12), (-4,0), (8,0)
The quadratic function is:
f(x)= (-x^2)/3. + 4x/3. +32/3
3. This quadratic function goes trough points ( 2, -6), (-1,0), (5,0)
The quadratic function is:
f(x)=(2x^2)/3. -8x/3. -10/3
4. This function goes trough points (0,2), (-2,0), (4,0)
The quadratic function is:
f(x)=(-x^2)/4. +x/2. +2