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labwork [276]
2 years ago
11

Jack is a discus thrower and hopes to make it to the Olympics some day. He has researched the distance (in meters) of each men's

gold medal discus throw from the Olympics from 1920 to 1964. Below is the equation of the line of best fit Jack found.
y = 0.34x + 44.63
When calculating his line of best fit, Jack let x represent the number of years since 1920 (so x=0 represents 1920 and x=4 represents 1924).

Using the line of best fit, estimate what the distance of the gold medal winning discus throw was in 1980.
71.83 meters

65.03 meters

717.83 meters

44.63 meters
Mathematics
1 answer:
wolverine [178]2 years ago
8 0

Answer:

65.03 meters

Step-by-step explanation:

The line of best fit, for the distance of the winning throw, in x years after 1980 is:

y = 0.34x + 44.63

Using the line of best fit, estimate what the distance of the gold medal winning discus throw was in 1980.

1980 - 1920 = 60, so this is y(60).

y(60) = 0.34(60) + 44.63 = 65.03

So the answer is 65.03 meters.

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Carrie borrowed money from her sister Melissa. She has been paying her back $80 a month for the past 5 months. If this is 32% of
MrRa [10]

The money which is borrowed by Carrie to her sister Melissa which she has been paying her back $80 a month is $1250.

<h3>What is percentage of a number?</h3>

Percentage of a number is the part of the whole number which is expressed in the fraction of hundredth. It is represented with "%" symbol.

Carrie borrowed money from her sister, whose name is Melissa. She has been paying her back $80 a month for the past 5 months. Thus, the total amount she has returned is,

x=$80×5

x=$400

Now, the $400 is 32% of the money that she borrowed. Thus, the amount of money which she borrowed is,

\text{Money}=\dfrac{400}{32}\times100\\\text{Money}=1250

Thus, the money which is borrowed by Carrie to her sister Melissa which she has been paying her back $80 a month is $1250.

Learn more about the percentage here;

brainly.com/question/2085058

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4 0
2 years ago
What is the gcf of 40 and60
Nostrana [21]
20 is the gcf ofn40 and 60
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3 years ago
If f(x) = 2x2 - 5 and g(x) = x2 - 4x - 8, find (f - g)(x).
oksano4ka [1.4K]

Answer:

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Step-by-step explanation:

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In 2010 a family membership in a country club cost $18,000 if this cost increased $475 each year since 2010, then how much will
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Answer:

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2^2 and 5 would be multiplied

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