<span> a2b3 • (2a2 - 1) I hope this helps</span>
We need to calculate the period of the function
Periodicity of a general function is given as follows:
Now, periodicity of is .
Now,
Periodicity of the function:
is given by:
here,
Therefore, the period of the function is 4.
The variation equation when y varies directly as the square of x is y = kx².
The value of y when x = 30 is 900k.
<h3 /><h3>Definition and types of variation:</h3>
Variation establish relationship between variable. Types of variation includes
- Direct variation
- Inverse variation
- Joint variation
- Combined variation
y varies directly as the square of x , Therefore,
where
k = constant of proportionality
Solve for y when x = 30.
Therefore,
y = kx²
y = 30²k
y = 900k
learn more on variation here:brainly.com/question/13977805?referrer=searchResults
8x + 10 = 10x - 6
2x = 16
X = 8
Measure 1 is 74
Measure 3 is 74
Measure 4 is 180-74=106
The answer is y=-2x+3 because the slope is -2 which solves the first half and then 3 is the y intercept so y=-2x+3