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OLga [1]
3 years ago
8

NEED ANSWER QUICK!!!

Mathematics
2 answers:
blsea [12.9K]3 years ago
8 0

Answer: Designing things with round parts may require you to know how to calculate a circumference.

Step-by-step explanation:

The curves on a running or race track are halves of a circle. In order for the track to be fair, the curves and lanes have to be laid out properly. The diameter determines the length of the curve, and then the straight-a-ways can be measured at the correct length to get the exact distance needed for the race. The outer lanes are longer than the inner lanes, so the starting lines are adjusted to compensate for that.

The circumference of a tire on a car has to be figured in to the way the odometer counts the milage and how the speedometer displays the vehicle's speed. The engineers who design the vehicle specify a certain size tire with a known diameter and circumference that matched the calibrations of the speedometer. If someone puts a much larger tire on the vehicle, the circumference will be larger, and the revolutions will result in a longer distance traveled and a higher rate of speed than the instruments on the dashboard are showing. If the circumference is 10% larger, and the driver thinks he is doing 73 mph but he is actually doing 80, he could be surprised when the state trooper pulls him over for 10 mph over the 70 mph speed limit.

Veronika [31]3 years ago
3 0

Answer:

Circumference being the distance around a circle, can be applied to any life cycle. ... At school we used a Venn Diagram which is two intersecting circles. Venn diagrams were invented by a guy John Venn as a way of picturing relationships between different groups of things.

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Troyanec [42]
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3 years ago
A bicycle store costs $2400 per month to operate. Thee store pays an average of $60 per bike. The average selling price of each
n200080 [17]

Answer:

The number of bicycle that store sell each month to break even  is 13 bikes  .

Step-by-step explanation:

Given as :

The operation cost of bicycle store = $2400

The cost of payment by store at average rate = $60 per bike

The average selling price of each bike = s.p = $120 per bike

Let The number of bicycle that store sell each month to break even = n bikes

<u>According to question</u>

The operation cost of bicycle store = (cost of payment by store at average rate + average selling price of each bike ) × number of bicycle that store sell each month to break even

i.e ($60 per bike + $120 per bike) × n bikes = $2400

Or,  ($180 per bike) × n bikes = $2400

∴ 180 n = 2400

Or, n = \dfrac{2400}{180}

i.e n = 13.333 ≈  13

So, The number of bicycle that store sell each month to break even = n = 13 bikes

Hence, The number of bicycle that store sell each month to break even  is 13 bikes  . Answer

7 0
3 years ago
Suppose that 40% of cars in your area are manufactured in the U.S., 30% in Japan, 10% in Germany, and 20% in other
galben [10]

Answer:

A)  The probability that a randomly chosen car is made in Germany or Japan is 40%.

B)  The probability that a car chosen at random is not made in the United States is 60%.

C)  The probability that two randomly chosen cars are both from Japan is 9%.

Step-by-step explanation:

Supposing that 40% of cars in my area are manufactured in the US, 30% in Japan, 10% in Germany, and 20% in other countries, to determine the probabilities that a car selected at random is made in Germany or Japan, a car selected at random is not US-made and two cars are selected at random, both are from Japan, the following calculations must be performed:

A)

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Therefore, the probability that a car chosen at random is not made in the United States is 60%.

C)

10/30 x 10/30 = X

0.3 x 0.3 = X

0.09 = X

Therefore, the probability that two randomly chosen cars are both from Japan is 9%.

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2 years ago
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Answer:

Step-by-step explanation:

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