Answer:
i think you have to add all the numbers then divide
Step-by-step explanation:
Answer:
347.1 and the standard deviation is
Step-by-step explanation:
the standard deviation you subtract the mean from each number then you square the results then you work out the mean of those results then square root that
Answer:
The answer is below
Step-by-step explanation:
A linear graph has an equation of the form:
y = mx + b,
where y and x are variables, m is the slope (rate of change) of the graph and b is the y intercept (value of y when x is 0).
Given that:
2x -2y = 4 , 3x + 2y = 6
The matrix form of the equation is:
AX = B
You have to solve 3 equations pretty much simultaneously here using the x and y values in the general form of the quadratic equation
Start with the first values of x=0 and y=5.1 to solve for c:
so c = 5.1
Next use the second x and y values along with the value of c in the next equation:
gives you
-2.07 = a + b. Solve this for a:
a = -2.07 - b
Finally use the third set of numbers with the c value AND the subbed value for a:
1.17 = 9(-2.07 - b)+ 3b + 5.1 which simplifies to:
1.17 = -18.63 - 9b + 3b + 5.1 which further simplifies to:
14.7 = -6b and b = -2.45
Now you have c and b, let's find a using one of the simplified equations:
-2.07 = a + b
-2.07 = a - 2.45
a = .38
So here's your equation:
Answer:
Step-by-step explanation:
F (x) = 1 – 4x
Calculate the value of f (2)
Subsitution 1-4(2)=1-8=-7
The answer of f(2)=-7
I hope this answers ur question