Mathematics
terrydavis1206
49

Please, show your work . Thanks

+4
(1) Answers
monicabaugh

4. seems to be a geometric sequence common ratio is -4 first erm is -2 [latex] a_{n}=-2(-4)^{n-1} [/latex] 5. x=-1 remember x^-1=1/x f(-1)=4(7^-1)=4(1/7)=4/7 f(2)=4(7^2)=4(49)=196 6. remember (ab)/(cd)=(a/c)(b/d) also (x^m)/(x^n)=x^(m-n) and (x^m)(x^n)=x^(m+n) so [latex] \frac{4.5*10^{3}}{9*10^{7}} [/latex]= ([latex] \frac{4.5}{9} [/latex])([latex] \frac{10^{3}}{10^{7}} [/latex])= (0.5)([latex] 10^{3-7} [/latex]= (0.5)(10^-4)= (5)(10^-1)(10^-4)= (5)(10^(-1-4) 5*10^-5 4. [latex] a_{n}=-2(-4)^{n-1} [/latex] 5. f(-1)=4/7 f(2)196 6. 5 times 10^-5

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