Question

Assume that m>0. Solve for v (eliminating m), being careful to choose a solution satisfying the assumption:
v2 = 9 + 64 m
v = 3 + 8 m

Answer 1

is that v^2 or 2v

Answer 2

v^2

Answer 3

so I would solve for m in the v=3+8m
so what would you get

Answer 4

i have no idea

Answer 5

solve for m
v=3+8m
need to get m by itself
substract 3 from both sides of equal sign
v-3=3-3+8m
rewrite as 8m=v-3
divdie by 8
m=1/8 v -3/8
now sub this into the first equation
v^2=9+64(1/8 v-3/8)
you try to finish this let me know what you get

Answer 6

-18.25=v

Answer 7

???

Answer 8

is that one eight ? in the m= equation?

Answer 9

v^2=9+64(1/8 v-3/8)
v^2=9+64/8 v-64(3)/8
v^2=9+8v-8(3)
v^2=9+8v-24
v^2-8x+15=0
(v-5)(v-3)=0
so v=5 and v=3
5=3+8m
8m=2
m=2/8=1/4
then use v=3
3=3+8m
8m=0
m=0
so solution is v=5
and m= 1/4