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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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Write 5x-y=frac14<br> in slope-intercept form.
Brilliant_brown [7]

Answer:

y=-14acfr+5x

Step-by-step explanation:

hope it helps

6 0
3 years ago
PLEASE HELP! Do the angles stay the same degrees when the shape is reduced or enlarged?
stira [4]
Well....if the triangle shape stays the same then the angle stays the same even if its enlarged in size. It will stay the same because you didn't change the way the shpae looks like, it is just zoomed in.

Answer: The angle measurements stay the same when the figure is enlarged or reduced
5 0
3 years ago
What is the greatest common factor of the terms 14c to the second power D and 42 C to the third power d
irina [24]

Answer:


Step-by-step explanation:

To find the GCF we factor all the given terms and then find the Greatest Common Factor from both ,


So , The given two terms can be given by

14c^2d = 2.7.c.c.d\\42c^3d =2.3.7.c.c.c.d\\

Here common numbers that are in both are

2.7.c.c.d

so GCF= 14c^2d

7 0
3 years ago
The correlation analysis assumes that the measurements have a bivariate normal distribution in the population. Select all of the
RoseWind [281]

Answer:

A. True

B. True

C. False

D. False

E. False

F. False

G. True

Step-by-step explanation:

Select all of the features that define a bivariate normal distribution.

<em>(this means that we select only those that are properties of the bivariate normal distribution)</em>

A. Bell-shaped probability distribution in two dimensions rather than one

<em>TRUE  because any combination of the two is still normal Z(x,y)=aX+bY</em>

B. A relationship between X and Y that is not linear

<em>TRUE The contours of the distribution are ellipses.</em>

C. The presence of outliers

<em>FALSE possible, but not always.</em>

D. Either X or Y has a decidedly skewed distribution

<em>FALSE normal distributions are symmetric</em>

E. A relationship between X and Y that is linear

<em>FALSE see answer to B</em>

F. A cloud of points that is funnel shaped (wider at one end than the other)

<em>FALSE normal distributions are symmetric</em>

G. The frequency distributions of X andY separately are normal

TRUE For example, in <em>Z(x,y)=aX+bY, putting a or b=0 means that X and Y separately are normal.</em>

4 0
3 years ago
david a high school senior was wondering if the cost of attending college is worth the expense. he collected the following data
dimulka [17.4K]

Answer:

Part A: Based on the information collected, who will have the higher mean annual salary?  

College graduates have a higher mean by about $20,000

 

Part B: If you were to graph this data, what would be important to consider?  

The data should be graphed on the same axis and scale so comparisons are possible

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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