Answer:
Would you be able to write it in english so i can help you.
Step-by-step explanation:
1. A = 1; B = 0; C = -18
2. A= -1; B = 0; C = 25
3. A = 25; B = 0; C = -1
Given:
The equation is:
To find:
The value of A, B and C for the equation's general form.
Solution:
We have,
Using distribution property, we get
Taking all terms on one side, we get
On comparing this equation with the general form of a quadratic equation , we get
Therefore, the correct option is 1.
Answer:
1/2m+100
Step-by-step explanation:
Answer:
0.2172<x<0.2668
Step-by-step explanation:
The formula for calculating the confidence interval is expressed as;
CI = xbar ± (z*s/√n)
xbar is the average = 0.242ppm
z is the z score at 95% confidence = 1.96.
s is the standard deviation = 0.04pm
n is the sample size = 10
substitute the values into the formula;
CI = xbar ± (z*s/√n)
CI = 0.242 ± (1.96*0.04/√10)
CI = 0.242 ± (1.96*(0.04/3.1623))
CI = 0.242 ± (1.96*(0.01265))
CI = 0.242 ± (0.02479)
CI = (0.242-0.02479, 0.242+0.02479)
CI = (0.2172, 0.2668)
Hence a 95% confidence interval for the mean mercury content of coal from this source is 0.2172<x<0.2668.
The negative x-intercept is at
The positive x-intercept is at
0).
Answer:
( -1/3 , 0 )
( 4 , 0 )