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bagirrra123 [75]
3 years ago
5

Warren, a golf fan, was curious about how often professional golfers make successful putts from various distances. He looked at

a large sample of putts from different distances (in meters) and recorded the success rate for each distance. He noticed a strong negative linear relationship. Here is computer output from a least-squares regression analysis for predicting success rate based on putt distance
Mathematics
2 answers:
Ksivusya [100]3 years ago
7 0

Answer:

16.85

Step-by-step explanation:

This answer is if the question asks, "Use this model to predict the success rate of putts from 5 meters".  When you create your equation, 84.05-13.44(x), plug 5 into x and you get 16.85.

anzhelika [568]3 years ago
4 0

Answer:

Explained below.

Step-by-step explanation:

A correlation coefficient is a mathematical measure of certain kind of correlation, in sense a statistical relationship amid two variables

Negative correlation is a relationship amid two variables in which one variable rises as the other falls, and vice versa.  

Values amid 0.7 and 1.0 (-0.7 and -1.0) implies a strong positive (negative) linear relationship amid the variables.

It is provided that Warren noticed a strong negative linear relationship between the success rate and putt distances.

This implies that as the putt distances are increasing the success rates are decreasing and as the putt distances are decreasing the success rates are increasing.

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suppose that during one period of extreme cold the average daily temp decreased 1 1/2 Fahrenheit each day how many days did it t
Nina [5.8K]

Answer:

The temperature decreased by 9 °F in <u>6 days.</u>

Step-by-step explanation:

Let the number of days it takes for the temperature to decrease by 9 °F be x.

Given:

Average daily temperature decreases by 1\frac{1}{2} °F.

Decrease of temperature in 1 day = 1\frac{1}{2}= 1.5 °F.

∴ Decrease in temperature in x days is 1.5x.

Now, as per question, decrease in temperature in 'x' days is 9 °F.

Therefore, 1.5x=9

x=\frac{9}{1.5}

x=6

Therefore, the temperature decreased by 9 °F in 6 days.

7 0
3 years ago
Solve.<br>2x + 8y = 18<br>y= -x + 6<br>Enter your answer, in the form (x, y), in the boxes.​
iren2701 [21]

Answer:

it is a simultaneous equation and I used Elimination method

2x + 8y = 18(equ \: 1) \\   y =  - x + 6 \:  \\ y + x = 6 \: (equ \: 2) \\  \\ from \:( equ2) \\  \:  x = 6 - y \: (equ \: 3 )\\ sub. \: (equ3) \: in \: (equ2) \\ 2(6 - y )+ 8y = 18 \\ 12 - 2y + 8y = 18 \\ 6y = 18 - 12 \\ 6y = 6 \\  \frac{6y}{6}  =  \frac{6}{6}   \\  y = 1 \\  \\ sub. \: y \: in \: equ3 \\ x = 6 - y \\ x = 6 - 1 \\ x = 5 \\  \\  \\ y = 1 \:  \: x = 5

5 0
3 years ago
The marching band at your school has 1.5 times as many trumpets as flutes. Which statement is true? these are the answers.
devlian [24]
The first one is the correct ratio.
4 0
3 years ago
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Write the equation of the line that passes through (-4,3) and is parallel to y = -2x - 8.
kobusy [5.1K]

Answer:

y = -2x - 5

Step-by-step explanation:

Let the equation if the line be y = mx + c

since the line is parallel to y = -2x - 8, their gradients/slope must be the same (aka m = -2)

sub (-4, 3):

3 = -2(-4) + c

c = -5

therefore, the equation of the line is y = -2x - 5

This is a question on coordinate geometry. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

8 0
3 years ago
Solve equation: 15=2y - 5(quickly please)
andrew11 [14]


15+5=2y-5+5

=20 = 2y

20/2 = 2y/2

10 = y

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3 years ago
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