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Svetlanka [38]
3 years ago
12

Gita puts tires on 21 bicycles and tricycles. She uses 53 tires in all. How many tricycles are there?

Mathematics
1 answer:
irga5000 [103]3 years ago
5 0
First you do 53+21 =74 and then you will subtract 21 bicycle and tricycles by 74 the total. You should get 53. That's how you check the answer it is 74.
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Answer:

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Step-by-step explanation:

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Big Ben, the famous clock tower in London, has a minute hand that is 14 feet long. How far does the tip of the minute hand of Bi
ycow [4]

Answer:

36.65 ft (2 dp)

Step-by-step explanation:

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\sf =\dfrac{360}{60} \times 25=150^{\circ}

To find how far the tip of the minute hand travels in 25 minutes, use the Arc Length formula:

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Given:

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\begin{aligned}\implies \textsf{Arc length} &=2 \pi (14)\left(\dfrac{150^{\circ}}{360^{\circ}}\right)\\ & = 28\pi \left(\dfrac{5}{12}\right)\\ & = \dfrac{35}{3} \pi \\ & = 36.65\: \sf ft\:(2\:dp)\end{aligned}

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the optimum dimensions is determined by taking the first derivative and equating to zero.

dA = 4 </span>πr - 256 <span>π /r2 = 0
r = 4 cm
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