mfsafi
mfsafi
12-02-2018
Mathematics
contestada
Solve 5r2 – 12 = 68.
Respuesta :
tl12502
tl12502
12-02-2018
the solution to the equation is
r= the square root of 56(b+2)
Answer Link
Аноним
Аноним
12-02-2018
[tex]5r^{2} [/tex] - 12 = 68
[tex]5r^{2} [/tex] = 68 + 12
[tex]5r^{2} [/tex] = 80
[tex]r^{2} [/tex] = 80 ÷ 2
[tex]r^{2} [/tex] = 16
r = [tex] \sqrt{16} [/tex]
r = 4 or -4
So r = 4 or -4
Answer Link
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