Answer:
1.72m^2x 5.=168f^2t^2x
2.63m^2x 6.=4\sqrt{257}imx\sqrt{im}
3.=55f^2t^2x
4.=90m^2x
1)
x = 10.3
2)
x = 5.65
3)
x = 12.08
4)
x = 13.74
5)
x = 18.43
6)
x = 15.52
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