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allsm [11]
3 years ago
14

What is the constant of proportionality in the equation y = 5/9 x ?

Mathematics
1 answer:
Mazyrski [523]3 years ago
6 0

The constant of proportionality is 5/9

y= kx  where k is the constant of proportionality

y = 5/9 x

k = 5/9

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If the perimeter of a square is 20, find the length of a diagonal
avanturin [10]

Answer:

7.07

Step-by-step explanation:

<h2><u>Length</u></h2>

a square has equal length on each side

hence is the perimeter is 20 it means that :

each side is 20/4 = 5

we can make a diagonal line which create 3 right angled triangles

2 sides of the triangle are 5 , this is the base and the height

to find the length we can make use of the Pythagoras theorem

c^2 = a^2 + b^2

c is the hypotenuse ( the diagonal;)

a and b are the opposite and adjacent

hence :

c^2 = 5 ^2 + 5^2

c^2 = 50

c = \sqrt{50}

c = 7.071

to 3sf

<h3><u>diagonal length  = 7.07</u></h3>

6 0
3 years ago
!!20 points and Brainliest please help!!!
vitfil [10]

D) ac + ad + bc + bd

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7 0
2 years ago
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HACTEHA [7]
The 2 graphs on the left are exponential
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5 0
3 years ago
Shiloh is 7 years older than Courtney. Shiloh's age is 13 years less than two times Courtney's age. The system below models the
Andrews [41]

I'm afraid I don't see the models you have written about although I do know the answer. (C= Courtney's age, S= Shilo's age)

Shilo is 7 years older then Courtney, which equals to C+7=S.

While at the same time Shilo is 13 years younger then twice Courtney's age. This turns into Cx2-13=S.

c+7=cx2-13. This is the equation, now lets work it out.

Add 13 on each side and you get

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Now we subtract c from each side and we get

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solmaris [256]

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Given

11 1/9 x 4 2/7

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5 0
3 years ago
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