kingsavage2002
23.11.2020 •
Mathematics
Drag the number of solutions to match the equation. Each tile may be used only once.
Infinitely many solutions No solution One solution
Equation Number of solutions
4(3x + 2) = 4(2x + 3) + 4x
10(x + 4) – 3 = 14x + 1
12 (10x + 15) – 32 = 2x + 6 + 3x
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Ответ:
an=a1(r)^(n-1)
a1=first term
r=common ratio
common ratio is -2 (-4 times -2=8)
first term is -4
an=-4(-2)^(n-1)
20th term
a20=-4(-2)^(20-1)
a20=-4(-2)^19
a20=2097152
20th term is 2097152