Answer:
6x -16
Step-by-step explanation:
f(x) = 6x + 2
f(x-3) =
Replace x with x-3
f(x) = 6(x-3) + 2
Distribute
= 6x - 18 +2
= 6x -16
To compare the two classes, the Coefficient of Variation (COV) can be used. The formula for COV is this:
C = s / x
where s is the standard deviation and x is the mean
For the first class:
C1 = 10.2 / 75.5
C1 = 0.1351 (13.51%)
For the second class:
C2 = 22.5 / 75.5
C2 = 0.2980 (29.80%)
The COV is a test of homogeneity. Looking at the values, the first class has more students having a grade closer to the average than the second class.
Answer:
a.
Step-by-step explanation:
Since you have the different parabolas there, the simplest way to determine which one is, is replacing x as 0 and then y as 0
y = -1/4x^2 + 1
When x = 0
y = -1/4 (0)^2 +1 = 1
When y = 0
0 = -1/4x^2 +1
1/4 x^2 = 1
x^2 = 4
x = + 2
x = - 2
The parabola with points:
(0,1); (-2,0) and (2,0) is a.
1. b -4y^5(3y^3+2)=-12y^8-8y^5
2.d 2x^3-3x^2-13x+12
3.c 3b(2b^2+3b-4)
