So you're trying to turn words into math: here you go
128 (original money) + n * t
so n is the amount he saves
and t is the amount of time (in weeks)
so you get
128+n*t
Hope this helped!
Calculate the average rate of change for the function f(x) = x4 + 3x3 − 5x2 + 2x − 2, from x = −1 to x = 1.
Slope....y=mx+b
slope of a line........y2-y1
------------
x2-x1
Answer:
D. 50
Step-by-step explanation:
Width: 2z × sqrt(var/n)
Interval is wider when:
z is higher
n is smaller
In the options, least value of n is 50
A^2 +B^2= c^2
12^2 +B^2= 37^2
144+B^2= 1369
Subtract 144 from both sides
B^2= 1225
Take the square root of 1225
B=35
Missing side is 35