Answer:
The explicit formula for f(n) is:

Step-by-step explanation:
The explicit formula is described by the following geometrical progression:

Now.. notice the picture below, of the two functions
geometry wise, is just a rectangle and a triangle
pretty sure you know how to get those, get their areas, add them up
Answer:
its C LOL
Step-by-step explanation:
4x1=4
12x4=48
4/48
Answer:

y is less than or equal to negative three fourths times x plus 2
Step-by-step explanation:
step 1
Find the equation of the solid line
we have the coordinates (0,2) and (4,-1)
Find the slope m
The formula to calculate the slope between two points is equal to

substitute



<em>Find the equation of the line in slope intercept form</em>

where
m is the slope
b is the y-intercept (value of y when the value of x is equal to zero)
we have

---> is given
substitute

Remember that
The shading area is below the line
therefore
The inequality is

y is less than or equal to negative three fourths times x plus 2