The best and the most correct answer among the choices provided by the question is the second choice. The number that <span>could be a root of f(x)=0 with a multiplicity of 4 is -2. </span>I hope my answer has come to your help. God bless and have a nice day ahead!
Answer: -3.0593
Step-by-step explanation:
The test statistic for the difference between two population mean (when population standard deviations
are known ) is given by :-

where ,
= Sample sizes taken from two populations 1 and 2.
= Difference between two Sample mean.
= Standard deviations of populations 1 and 2.
As per given , we have
We assume that the data follows a normal distribution.
Then, the test statistic will be :-
Hence, the test statistic= -3.0593
Answer:
x = 3
Step-by-step explanation:
The line of reflection is x = 3.
Answer:
The slope is -.3125 and the y intercept is 25
The x intercept is 80
Step-by-step explanation:
2.5x+8y=200
We want to get this in slope intercept form so we will solve for y
Subtract 2.5x from each side
2.5x-2.5x+8y=-2.5x +200
8y = -2.5x +200
Now divide by 8 on both sides
8y/8 = -2.5x/8 + 200/8
y = -.3125x +25
This is in the form y = mx+b where m is the slope and b is the y intercept
The slope is -.3125 and the y intercept is 25
To find the x intercept, set y = 0 and solve for x
2.5x+8y=200
2.5x = 200
Divide by 2.5 on each side
2.5x/2.5 = 200/2.5
x =80
We can use the vertex form

to find the equation of the graph. We know that a is the coefficient, and since the graph opens upwards and is slightly stretched vertically, we know that a is 1/3. On the graph, we see that the vertex of the parabola is at (0,-1). Therefore, h is 0 and k is -1.
Our vertex form equation is

Which is D