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3 years ago

How to find a sector of an arc?

Mathematics

1 answer:

Finger [1]3 years ago

6 0

Answer:

easy!

Step-by-step explanation:

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Leo's bank balances at the end of months 1, 2, and 3 are $1500, $1530, and $1560.60,

grandymaker [24]

Leo's balance after 9 months will be: $1757.49

Step-by-step explanation:

It is given that the balances follow a geometric sequence

First of all, we have to find the common ratio

Here

$a_1 = 1500\\a_2 = 1530\\a_3 = 1560.60$

Common ratio is:

$r = \frac{a_2}{a_1} = \frac{1530}{1500} = 1.02\\r = \frac{a_3}{a_2} = \frac{1560.60}{1530} = 1.02$

So r = 1.02

The general form for geometric sequence is:

$a_n = a_1r^{n-1}$

Putting the first term and r

$a_n = 1500 . (1.02)^{n-1}$

To find the 9th month's balance

Putting n=9

$a_9 = 1500 . (1.02)^{9-1}\\= 1500.(1.02)^8\\=1757.4890$

Rounding off to nearest hundredth

$1757.49

Hence,

Leo's balance after 9 months will be: $1757.49

Keywords: Geometric sequence, balance

Learn more about geometric sequence at:

#LearnwithBrainly

5 0

3 years ago

Solve -1 4/5 x= 9. <br> A) 5 <br> B) 1/5 <br> C) -5 <br> D) -1/5

Darina [25.2K]

Answer:

Step-by-step explanation:

Express - 1 $\frac{4}{5}$ as an improper fraction, that is

- $\frac{9}{5}$ x = 9 ( multiply both sides by 5 )

- 9x = 45 ( divide both sides by - 9 )

x = - 5 → C

7 0

3 years ago

Pls help me I dont get it pls help me

liubo4ka [24]

Answer:

For an equal number of servings,the bananas will have three times as much sugar.

Step-by-step explanation:

If you would like me to explain how I got this answer, tell me in the comments

3 0

3 years ago

Find the common difference of the arithmetic sequence 4, 1, -2, ...

wel

Answer:

6. i dont kno

Step-by-step explanation:

7 0

3 years ago

A dolphin swam 712 miles in 38 hour. What was its average speed in miles per hour (mph)?

Vilka [71]

To find miles per hour you divide the number of miles by the number of hours

(7 1/2)/(3/8) = (15/2)(8/3) = 20 mph

4 0

3 years ago