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Does there exist a nontrivial homomorphism from R to Z?

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Direct square variation if z varies directly as the square of r and z is 24 when r is 4 what is r?
z varies directly as the square of rSo z = cr2 where c is the constant of variation.z = 24 when r = 4 ie 24 = c*42 so that c = 24/42 = 1.5When z = 121.5,121.5 = 1.5*r2 so that r2 = 121.5/1.5 = 81 so...
If r 5 z then 15 z 3 y then r?
r=y
Words with r and z?
raze, razor, zero, vaporize, terrorize, realize, radicalize, Zorro
Did xicor exist in dragonball z?
no
Why does multiplication by 2 define a bijection from R to R R meaning set of Real numbers?
It's not a bijection in Z because it's not surjective. For example, f(x) = 3 has no solution in Z. In other words, you can't double an integer (Z) to get an odd number. It works in R because it's ok...