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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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The last time he checked, Matthew was 40 inches tall. Matthew just measured himself again and found out that he is 10% taller no
weqwewe [10]
44 inches.

All you have to do is find out what 10% of 40 is then add it back to 40. In the case of finding 10% of something you just “chop” of the back number (or move the decimal place forward) so 10% of 40 is 4. The. 40+4=44.

You can also multiply fractions to find the percent of a number but that is not necessary in this case.
8 0
4 years ago
Drake buys a ring that costs $8,000, which depreciates at a rate of 9.5% per year.
Alex73 [517]

Answer:

$1129.93

Step-by-step explanation:

100 - 9.5 = 90.5

8000 - 90.5 = 7909.5

7909.5 ÷ 7 = 1129.93

i hope this helps

4 0
2 years ago
Select the correct answer.
Anuta_ua [19.1K]

Answer:

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4 0
2 years ago
Read 2 more answers
Given the sequence 4, 8, 16, 32, 64, ..., find the explicit formula.
Goshia [24]

Answer:

\sf 2^{(n+1)}

Step-by-step explanation:

Explicit formula is used to represent all the terms of the geometric sequence using a single formula.

  \sf \boxed{\bf t_n=ar^{(n-1)}}

Here, a is the first term.

r is the common ratio.

r = second term ÷ first term

4, 8,16,32,64,.....

    a = 4

    r = 8 ÷4 = 2

\sf t_n =4*2^{(n-1)}

    \sf = 4*2^n * 2^{(-1)}\\\\     = 4*2^n*\dfrac{1}{2}\\\\     = 2*2^n

   \sf = 2^{(n+1)}

4 0
2 years ago
Evaluate the expression for the given value of x.<br> 5x + 6 for x = 4
Brrunno [24]
If x=4, rewrite the equation which would be 5(4)+6

First you multiply 4 by 5 which would give you 20

Now put in the 6 in the equation

20+6

20+6=26

Therefore for the expression given the value of x would make your answer be 26

5 0
3 years ago
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