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nekit [7.7K]
3 years ago
14

I need help on part b of the question

Mathematics
1 answer:
frosja888 [35]3 years ago
5 0

a. The first (white) ring has 8 tiles, the next (gray) ring has 16 tiles, the next (white) ring will have 24 tiles. Each ring adds 8 more tiles than the ring before it.

b. If the first white ring corresponds to n=1, the number of tiles in the n-th ring is ...

... 8n . . . . . number of tiles in ring n

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Charles has $1600 dollars in his account and makes automatic $400
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In 2010, the population of a city was 161,000. From 2010 to 2015, the population grew by 8%. From 2015 to 2020, it fell by 6.7%.
solniwko [45]

Answer:

99%

Step-by-step explanation:

2010 population = 161,000

From 2010 to 2015, the population grew by 8%.

2010 to 2015 = 161,000 + (8% of 161,000)

= 161,000 + (0.08 * 161,000)

= 161,000 + 12,880

= 173,880

2010 to 2015 = 173,880

From 2015 to 2020, it fell by 6.7%

2015 to 2020 = 173,880 - (6.7% of 173,880)

= 173,880 - (0.067 * 173,880)

= 173,880 - 11,649.96

= 162,230.04

2015 to 2020 = 162,230.04

what percent did the city grow from 2010 to 2020.

= 161,000 / 162,230.04 × 100

= 0.9924179270374 × 100

= 99.241792703743

Approximately, 99% to the nearest whole number

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3 years ago
Find the surface area of the cylinder.Round your answer to the nearest tenth.
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The answer is 3438.16 i think

Step-by-step explanation:

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