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likoan [24]
3 years ago
5

A negative correlation between two variables x and y usually yields a negative p-value for r.

Mathematics
1 answer:
Harman [31]3 years ago
6 0
A. True if im wrong sorry hope this helped tho :p
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PLEASE HELP (image attached)
fiasKO [112]
C is the correct answer
4 0
3 years ago
In a particular country, there are two types of currency: Kabuls and Carumpts. 8 Kabuls and 2 Carumpts are worth $61.70. 3 Kabul
Misha Larkins [42]

Answer:

Kabuls = 7.5

Carumpts= 0.85

Step-by-step explanation:

Let x represent the price of kabuls

Let y represent the price of carumpts

8x + 2y= 61.70......equation 1

3x + 10y= 31.........equation 2

Multiply equation 1 by 3 and equation 2 by 8

24x + 6y= 185.1

24x + 80y= 248

-74y = -62.9

y= 62.9/74

y= 0.85

Substitute 0.85 for y in equation 1

8x + 2(0.85) = 61.70

8x + 1.7= 61.70

8x = 61.70-1.7

8x = 60

x= 60/8

x= 7.5

Hence the dollar value for kabuls is 7.5 and carumpts is 0.85

3 0
2 years ago
A cone has a diameter of 4 cm and a height that is 6 times the diameter. Using 3.14 for pi, which of the following can be used t
Triss [41]

Answer:

1/3(3.14)2^2(24)

Step-by-step explanation:

The volume of a cone is given by the formula;

1/3πr³

Considering the radius is 2 cm and the height is 24 cm (4 times the diameter).

Therefore;

Volume = 1/2(3.14)2²(24)

            This can be used to calculate the volume.

3 0
3 years ago
What is the ratio for markers to pencils?
Contact [7]

Answer:

3:5

The ratio of pens:pencils is 3:5.

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Two weather stations are aware of a thunderstorm located at point C. The weather stations A and B are 27 miles apart. How far is
cluponka [151]

Station A is at a distance of 28.83 miles from the storm

<h3>Sine rule</h3>

Sine rule is used to show the relationship between the sides of a triangle as well as their opposite angles. It is given by:

\frac{a}{sin(A)}= \frac{b}{sin(B)}=\frac{c}{sin(C)}

From the diagram:

  • A = 34° + 90° = 124°

Also:

  • B = 90° - 61° = 29°

Hence:

  • C + A + B = 180°
  • C + 29 + 124 = 180
  • C = 27°

b = distance station A from the storm, c = AB = 27 miles

Using sine rule:

\frac{c}{sin(C)} =\frac{b}{sin(B)} \\\\\frac{27}{sin(27)}=\frac{b}{sin(29)}  \\\\b=28.83\ miles \\

Station A is at a distance of 28.83 miles from the storm

7 0
2 years ago
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