3 years ago

find the ninth term of the geometric sequence, given the first term and the common ratio: a1=1, r=-1/3

Mathematics

1 answer:

olasank [31]3 years ago

3 0

Answer:

0.0001524

Please Mark Brainliest If This Helped!

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Mike saves $42 a week for 7 weeks. During his 8-day vacation, he plans to spend $8.25 each day for snacks. Which expression show

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The answer is B, because you will have to multiple 42 by 7 to see how much money he will have in 7 weeks and then you will have to subtract 8 × 8.25 to see how much money he spent on his vacation.

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3 years ago

During the last ten years oliver has played 1200 games of chess oliver has drawn 6% of the games he has lost 33% of the game cal

Anna [14]

Answer:

6+33=39 now we subtract from 100

100-39=61

He won 61 percent of the games

now we multiply 1200*0.61=732

so he won 732 of the 1200 games

Hope This Helps!!

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3 years ago

The first term of a geometric sequence is 32, and the 5th term of the sequence is 818 .

sammy [17]

Answer:

$32,24,18,\frac{27}{2} ,\frac{81}{8}$

Step-by-step explanation:

Let x, y , and z be the numbers.

Then the geometric sequence is $32,x,y,z,\frac{81}{8}$

Recall that term of a geometric sequence are generally in the form:

$a,ar,ar^2,ar^3,ar^4$

This implies that:

a=32 and $ar^4=\frac{81}{8}$

Substitute a=32 and solve for r.

$32r^3=\frac{81}{8}$

$r^4=\frac{81}{256}$

Take the fourth root to get:

$r=\sqrt[4]{\frac{81}{256} }$

$r=\frac{3}{4}$

Therefore $x=32*\frac{3}{4} =24$

$y=24*\frac{3}{4} =18$

$z=18*\frac{3}{4} =\frac{27}{2}$

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3 years ago

Dana is purchasing a new car that costs $24,650. The bank is charging 4% simple interest for 6 years to finance the car. Using I

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Answer:

5,916

$24650 \times 0.04 \times 6 = 5916$

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3 years ago

TJ earns a 20% commission on all sales plus a base salary of $40,000. His total income last year was more than $70,000. Which in

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Answer:

40,000 + 0.2x ≥ 70,000

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3 years ago