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Serga [27]
3 years ago
9

In your own words, what is a positive association? Use the words, "line of best fit" in your explanation.

Mathematics
1 answer:
N76 [4]3 years ago
7 0
It’s when 2 variables have the line of best fit and have a positive association when the variables tend to increase as the values of other valuables increase
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If f(x) varies directly with x and f(x) = 40 when x = 8, find the value of f(x) when x = 2.
Vsevolod [243]

Answer:

f(x) = 10

Step-by-step explanation:

for direct variation

f(x) = kx

substitute in for f(x) and x

40 = k*8

solve for k

40/8 = k*8/8

5 =k

now we have

f(x) = 5*x

let x=2

f(x) = 5*2

f(x) = 10


4 0
4 years ago
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there are 34 people in a restaurant. four groups of 3 people leave and then 5 groups of 2 arrive. evaluate the expression 34 - 4
IceJOKER [234]
4*3=12, 5*2=10,  34-12= 22, and 22+10=32
6 0
3 years ago
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What function family does Y=1/3x – 7 belong to?
grigory [225]

Answer:

Hey there!

Y=1/3x-7 is a linear function, the highest power is the 1st power

Hope this helps :)

4 0
3 years ago
Bridget takes a 5-inch by 4-inch rectangle of fabric and cuts from one corner of the piece of fabric to the diagonally opposite
mario62 [17]

Answer:

Perimeter of each triangles are equivalent to 15.4 inches.

Step-by-step explanation:

Given:

A rectangle :

Length of the rectangle = 5 inches

Width of the rectangle =4 inches

As Bridget cuts it from one corner to the other corner,its forms two right angled triangle.

The diagonal will be treated as the hypotenuse.

Lets say that the length of the hypotenuse is 'x'.

Using Pythagoras formula:

⇒ (hypotenuse) = \sqrt{(perpendicular)^2+(base)^2}

Plugging the values:

⇒ hypotenuse = \sqrt{5^2+4^2}

⇒ hypotenuse = \sqrt{25+16}

⇒ hypotenuse =\sqrt{41}

⇒ hypotenuse = 6.40  inches

Now we have to find the perimeter :

Perimeter = Summation of length of all sides.

So,

Perimeter  of each triangle = (length + width + hypotenuse)

⇒ Perimeter =(5+4+6.4)

⇒ Perimeter =15.4  inches

Perimeter of each triangle, as they are equally sized are same that is   15.4 inches.                              

7 0
3 years ago
What is the surface area of the pyramid?
choli [55]

Answer:

160

Step-by-step explanation:

one of the triangle faces:

4 × 6 = 24cm^2

theres 4 triangle faces so 24 × 4 = 96 cm^2

then u have to add on the square face which is 8×8 =64cm^2

total:

64 + 96 = 160cm^2

7 0
3 years ago
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