The picture in the attached figure
we know that
In similar triangles. The ratio of the lengths of the sides CS and CB must be equal to the ratio of the lengths of sides CR and CA. CS / CB = CR / CA
which can also be written as,
CS / (CS + SB) = CR / (CR + RA)
CS*(CR+RA)=CR*(CS+RA)
CS=2x+1
SB=6x
CR=7.5
RA=18
(2x+1)*[7.5+18]=7.5*[2x+1+18]
(2x+1)*[25.5]=7.5*[2x+19]
(51x+25.5)=15x+142.5
51x-15x=142.5-25.5
36x=117
x=117/36
x=3.25
the answer is x=3.25
You have to move all terms involving the variable on one side, and all constant terms on the other side.
To move a term from a side to the other, you have to change its side.
So, for example, if you move 4x from left to right, it will become -4x (you're actually subtracting 4x from both sides):
Similarly, add 5 to both side to get
Finally, divide both sides by 3:
To reflect a function of x in the y-axis, replace all x with -x.
The equation of this function after y-axis reflection is
f(x) = (-x + 4)³
or you can rewrite it as
<span>f(x)</span> = (4 - x)³
Answer:
It states that time spent on social networking sites & twitter have a strong positive correlation.
Step-by-step explanation:
Correlation is the statistical measure of co-movement relationship between two variables. Correlation Coefficient 'r' lies between -1 & +1
Correlation can be following on basis of variables relationship direction
- Positive Correlation : It means two variables move in the same direction - one variable increase, other variable increase & one variable decrease, other variable decrease. 'r' is positive.
- Negative Correlation : It means two variables move in opposite direction - one variable increase, other variable decrease & one variable decrease, other variable increase. 'r' is negative.
Correlation can be following on the basis of variables :
- Strong Correlation : It means the variables fluctuations are more inter-related. r > 0.5
- Weak Correlation : It means the variables fluctuations are less inter-related. r < 0.5
Correlation between times spent on social networking sites & twitter is 0.8 This r = 0.8 means that the two activities have strong positive correlation. It implies that increase in one lead to increase in other activity & vice versa, by a high magnitude.
Answer:
576 cubic feet of dirt
Step-by-step explanation:
l x w x h
8 x 12 x 6 = 576
