Biancaaa012idn
Answered

Discover how IDNLearn.com can help you find the answers you need quickly and easily. Our experts provide timely, comprehensive responses to ensure you have the information you need.

PLEASE HELP ME! For a geometric sequence, if a1 = 2 and a5 = 1250, what is the value of r?​

PLEASE HELP ME For A Geometric Sequence If A1 2 And A5 1250 What Is The Value Of R class=

Sagot :

Gh8186idn

Answer: r = 5

Steps:

[tex]a_n=ar^{n-1}[/tex]

1. add Values to formula

[tex]1250=2r^{5-1}[/tex]

2. get r alone

[tex]\frac{1250}{2}=\frac{2r^{4}}{2}[/tex]  ➜ [tex]625= r^4[/tex]
3. get rid of the exponents

[tex]\sqrt[4]{625}= \sqrt[4]{r^4}[/tex] ➜ [tex]\sqrt[4]{625}= r=5[/tex]

r = 5

Your participation means a lot to us. Keep sharing information and solutions. This community grows thanks to the amazing contributions from members like you. Accurate answers are just a click away at IDNLearn.com. Thanks for stopping by, and come back for more reliable solutions.