Answer: I am guessing 9/8 miles
Step-by-step explanation:
C(x)=rx+s we are told that x=3, c(x)=21, and s=3
21=3r+3 divide both sides by 3
7=r+1 subtract 1 from both sides
6=r so now c(x) becomes:
c(x)=6x+3
Answer:
Step-by-step explanation:
This is a geometric progression.
Givens
a1 = 7
r = 6
Formula
a_n = a1 * r^(n - 1)
a_n = 7 (6)^(n - 1)
Sample
Try n = 3
a_3 = 7*(6)^(3-1)
a_3 = 7*(6)^2
a_3 = 7 * 36
.a_3 = 252 which is exactly what it should be.
Answer:
3?
Step-by-step explanation:
3n²+4m+5
3n²+(4m+5)
=3n²+9m
=3n²/9m;(3÷9)(n²÷m)
=1n²/3m
=n²/3m
