216 =6^3
1,296 = 6^4
7,776 = 6^5
x = 6^f(x)
log x = log 6^f(x) = f(x)log 6
f(x) = log x / log 6 =
1,296 = 6^4
7,776 = 6^5
x = 6^f(x)
log x = log 6^f(x) = f(x)log 6
f(x) = log x / log 6 =
36 children in a village men: children is 11:3
2 answers:
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x =
using the ' laws of exponents '
• ×
=
• ÷
=
• ()^n =
×
=
÷
=
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equating the exponents since bases on both sides are 7
4x = 5 - 3x
7x = 5 ⇒ x =