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ohaa [14]
3 years ago
15

(15a -7b+4c) -(-3a-6b+12c) adalah​

Mathematics
1 answer:
Firlakuza [10]3 years ago
8 0

Answer:

15a-7b+4c+3a+6b-12c

=18a-b-8c

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The carousel at a local theme park has a diameter of 32 feet. each ride last three minutes and the speed of the carousel is 4.3
Liula [17]

Answer:

1297.37 feet.

Step-by-step explanation:

Given:

The carousel at a local theme park has a diameter of 32 feet.

Each ride last three minutes and the speed of the carousel is 4.3 revolutions per minute.

<u>Question asked:</u>

What is the maximum distance riders travel in one full ride? Round to the nearest hundredth.

<u>Solution:</u>

First of all we will find the radius of the carousel:-

Diameter = 32 feet

Radius, r = \frac{Diameter}{2} =\frac{32}{2} =16\ feet

Now, we will find distance covered by the carousel in one ride that means its circumference;

Circumference\ of \ the \ circle=2\pi r

                                               =2\times\frac{22}{7} \times16\\ \\ =\frac{704}{7} \\ \\ =100.571\ feet

In 1 minute, number of revolution taken by carousel = 4.3

<u>As each ride last for 3 minutes:-</u>

In 3 minutes, number of revolution taken by carousel = 3 \times 4.3 = 12.9

In 1 revolution, distance covered by carousel = 100.571 feet

In 12.9 revolution, distance covered by carousel = 100.571  \times 12.9

                                                                                 = 1297.365 feet

Thus, the maximum distance riders travel in one full ride is 1297.37 feet.

                                           

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Step-by-step explanation:

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