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Salsk061 [2.6K]
3 years ago
13

Pls help soon!Amélie runs a bakery. She wants to find out whether her cake sales are affected by the weather conditions. She rec

orded the daily temperature and the number of cakes she sold on different days of the year. The table shows the data she gathered.
Daily Temperature (°F)-42,45,48,54,59,62,64,65,67,75,84
Cakes Sold- 39,52,31,61,72,35,61,34,58,45,24

Question; Fill in Blank-
1.The correlation coefficient is close to A. -0.20 B. 0.50 C. -0.75 D.1.00

2. Based on this information, we can conclude that Amélie's cake sales are affected by the daily temperature. A. Strongly B.Moderately C. Not
Mathematics
2 answers:
kozerog [31]3 years ago
5 0
1.The correlation coefficient is close to B. 0.50
we can conclude that Amélie's cake sales are affected by the daily temperature. <span>A. Strongly</span>
Gekata [30.6K]3 years ago
3 0

Answer:

#1) A. -0.20; #2) C. Not

Step-by-step explanation:

The number of cakes is thought to depend on the temperature.  This means that the number of cakes would be the dependent variable, y, and the temperature would be the independent variable, x.

This means in our calculator, the temperature data goes in the first list and the cake data goes in the second list.

Running a linear regression after entering the data, we get our correlation coefficient, r, as -0.1974, which rounds to -0.20.

This is not very close to -1; this means it is not a very good fit.

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Please help me I’m terrible at math
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Question 7 PLEASE HELP Describe the transformation from the graph of f(x) =x to the graph of g(x)=1/5x+4 A: The transformations
Elis [28]

Answer:

  A: The transformations are a rotation and a translation.

Step-by-step explanation:

The function f(x) is shown in the attachment as a dashed red line. The function g(x) is shown as the blue line.

The two lines have different slopes. The change in slope can be accomplished by horizontal or vertical scaling, or by rotation. The offered answer choices only include <em>rotation</em> as an option for changing the slope.

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<em>Comment on the answer choices</em>

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For example, reflecting the line across the bisector of the angle between the lines (a line with a slope of (√13 -2)/3 through (5, 5)) will give the desired transformation in one step.

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7 0
3 years ago
please help!!! the study conducted was 6 days long: there was 72mm of plant food and it decreased an equal amount each day.
Anuta_ua [19.1K]

Answer:

f(x) = 72 - 12x

Step-by-step explanation:

No. of days of study = 6

Amount of food to use for the 6 days = 72 mm

Given that equal amount of food was used each day, amount used per day = \frac{72}{6} = 12 mm

This would enable us derive a function for the amount of food remaining f(x), which can be expressed as a function of the number of days that have passed, (x).

Thus, we would have:

f(x) = 72 - 12x

Let's check if this equation expresses the relation of the function well.

At the end of day 1, if we used, 12mm, we would have 72 - 12 = 60mm of food remaining.

If we replace x in the equation we derived, we would get the same 60mm as the amount of food remaining.

If you try 2, 3, 4, 5 days, you'd get same thing.

At the end of the study, after the 6th day, the food would remain nothing.

Replace 6 for x in the relation function derived, you'd get a value of 0.

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Answer:

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Step-by-step explanation:

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