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stich3 [128]
3 years ago
7

A geometric sequence is defined by the explicit formula an = 5(-3)n-1. What is the recursive formula for the nth term of this se

quence?
Mathematics
1 answer:
Ivan3 years ago
6 0
An=a1(r)^(n-1)
an=5(-3)^(n-1)
so then each term is multiplied by -3

so
f(n)=-3(f(n-1))
and
f(n)=5
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\$10.5

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Did Janice's mother give her enough money? If so, should she receive any change? If not, how much more money does she need?

 we know that

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<u>Find the cost of the apples</u>

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\$4+\$7=\$11

\$11 > \$10------> Janice's mother didn't give her enough money

She needs more money

She needs-------> \$11-\$10=\$1

therefore

<u>the answer part 3) is</u>

She needs  \$1 more


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