Answer:
A and B is correct ...............
y=4x^2+5x-6y=4x2+5x−6
:
Given points are :
x = -2 0 4
y=f(x) = 0 -6 78
We have to model the parabola with the help of these points
Solution:
We consider a standard equation of parabola y= ax^2+bx+cy=ax2+bx+c
now, we put the points in the equation we get,
at (-2,0) is 4a-2b+c=0
at (0,-6) is c=-6
at (4,78) is 78= 16a+4b+c
now, solving these equation we get, a= 4 , b= 5 , c= -6
so the equation formed with these points is y=4x^2+5x-6y=4x2+5x−6
we can see this in the graph attached.
Step-by-step explanation:
Hope this helps!! :D
Answer
Sorry, I need points to ask more question.
Answer:
Step-by-step explanation:
The formula for determining standard deviation is
Standard deviation = √npq
Where
n represents the size of the sample.
p represents probability of success
q represents probability of failure
About 4% of the population has a particular genetic mutation. This means that the probability of success, p would be
p = 4/100 = 0.04
The probability of failure, q would be
q = 1 - p = 1 - 0.04
q = 0.96
n = 700
Therefore,
Standard deviation = √700 × 0.04 × 0.96
= √26.88
Standard deviation = 5.185 to three decimal places.
Answer:
Where are the expressions??
Step-by-step explanation:
x + 2y + x + 2 simplified would be 2x+2y+2
Hope this helps :)