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IRINA_888 [86]
1 year ago
6

Amélie runs a bakery. She wants to find out whether her cake sales are affected by the weather conditions. She recorded the dail

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

Based on this information, we can conclude that Amélie's cake sales are affected by the daily temperature.
Mathematics
2 answers:
d1i1m1o1n [39]1 year ago
5 0

Answer:

Step-by-step explanation:

Given that Amélie runs a bakery. She wants to find out whether her cake sales are affected by the weather conditions. She recorded the daily temperature and the number of cakes she sold on different days of the year

Let us find the correlation coefficient for the variables x, daily temperature and y, no of cakes sold.

x y

 

42 39

45 52

48 31

54 61

59 72

62 35

64 61

65 34

67 58

75 45

84 24

 

r -0.197481837

Since r is nearer to 0 than to 1, we find that there is a negative very moderate correlation between the two variables.

We cannot conclude that  Amélie's cake sales are affected by the daily temperature.

rodikova [14]1 year ago
4 0

Answer:

the coeffiectans is 100

Step-by-step explanation:

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Answer:

True options: 1, 2 and 5

Step-by-step explanation:

From the given diagram, you can see that the center of the hyperbola is placed at the origin, so first option is true (see attached diagram for definition of center, vertices, foci, i.e.)

There are two vertices of the hyperbola, they are placed at (-6,0) and (6,0), so second option is true.

The transverse axis is the segment connecting vertices, this segment is horizontal, so option 3 is false.

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8 0
2 years ago
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Juan purchased an antique that had a value of $200, at the time of purchase. Each year, the value of the antique is estimated to
algol13

Answer: a= 1.21

Step-by-step explanation:

Note: This is a compound interest problem

Step 1

The value of the antique after one year is:

100% + 10% of the purchase price

= 110% of 200

=110/100 of 200

=1.10 × 200

Step 2

The value after two years is:

110% of the value after one year

=110% of (1.10 × 200)

=110/100 of (1.10× 200)

=1.10×(1.10×200)

=1.21×200

Step 3

Expressing the above solutionin the form 200a:

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Thanks

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2 years ago
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NNADVOKAT [17]

The last 2 shapes.

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2 years ago
If 2x2 + y2 = 17 then evaluate the second derivative of y with respect to x when x = 2 and y = 3. Round your answer to 2 decimal
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Answer:

y''=-1.26

Step-by-step explanation:

We are given that 2x^2+y^2=17

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Differentiate w.r.t x

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4x+2yy'=0

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yy'=-2x

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Again differentiate w.r.t.x

Then , we get

2+(y')^2+yy''=0 (u\cdot v)'=u'v+v'u)

2+(y')^2+yy''=0

Using value of y'

yy''=-2-(-\frac{2x}{y})^2

y''=-\frac{2+(-\frac{2x}{y})^2}{y}

Substitute x=2 and y=3

Then, we get y''=-\frac{2+(\frac{4}{3})^2}{3}

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Answer:

A) b) and c) answer has been explained below.

Step-by-step explanation:

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8 0
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