3 years ago

Identify the value of r and a1 for each geometric series. 8 + 4 + 2 + 1 + ...

Mathematics

1 answer:

const2013 [10]3 years ago

3 0

Answer:

Step-by-step explanation:

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Naomi pays $1.50 each time she rides the city bus. She has already ridden the bus 18 times so far this year. The expression repr

klio [65]

Answer:

$27

Step-by-step explanation:

18 times $1.50 = 27 dollars a year

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3 years ago

Marcos purchased a sail boat for $56,900. He anticipates each year the boat will decrease in value by 8.1% from the previous yea

Varvara68 [4.7K]

Answer: $56,900\left( 0.919\right)^x$

Step-by-step explanation:

Given

Marcos purchased a sailboat for $\$56,900$

Each year the boat will decrease in value by $8.1\%$

After 1 year it is

$\Rightarrow 56,900-56,900\times 0.081\\\Rightarrow 56,900\left( 1-0.081\right)\\$

after another year it becomes

$\Rightarrow 56,900\left( 1-0.081\right)-56,900\left( 1-0.081\right)\times 0.081\\\Rightarrow 56,900\left( 1-0.081\right)\cdot \left( 1-0.081\right)\\\Rightarrow 56,900\left( 1-0.081\right)^2$

After $x$ years it is

$\Rightarrow 56,900\left( 1-0.081\right)^x$

$\Rightarrow 56,900\left( 0.919\right)^x$

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2 years ago

The diagram shows a plan of a pond.

Serga [27]

Step-by-step explanation:

R=2m

A=πr²

A = 3.142*2*2

=12.568 m2

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3 years ago

Read 2 more answers

ASAP!!!!!!!!! Please show process!!! Using law of sines!!!!!!!! Thank you so much

Flauer [41]

Answer:

the answers are on the picture but the numbers may be rounded

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2 years ago

Help !! Multiply: 2w(w+17)

kotykmax [81]

Answer:

2w^2 + 34w

Step-by-step explanation:

2w(w+17)

Multiply the 2w by each term in the parentheses

2w*w + 2w*17

2w^2 + 34w

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3 years ago