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prohojiy [21]
3 years ago
15

What is the constant of proportionality? 13 39 42 78

Mathematics
1 answer:
Nana76 [90]3 years ago
6 0
The constant of proportionality is 13
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Given that p=x^2-y^2/x^2+xy
Nataly [62]

Answer:

p = - \frac{1}{2}

Step-by-step explanation:

Given

p = \frac{x^2-y^2}{x^2+xy} ( factorise numerator and denominator )

x² - y² ← is a difference of squares and factors as (x - y)(x + y)

x² + xy ← factor out x from each term

= x(x + y) , thus

p = \frac{(x-y)(x+y)}{x(x+y)} ← cancel (x + y) on numerator/ denominator

   = \frac{x-y}{x} ← substitute x = - 4, y = - 6

   = \frac{-4-(-6)}{-4}

   = \frac{-4+6}{-4}

    = \frac{2}{-4} = - \frac{1}{2}

6 0
3 years ago
Last weekend mandy collected 4 times as many shells as Cameron. Together they collected 40 shells. How many shells did Mandy col
balandron [24]
Equation: 4x + x = 40
X is the number of shells Cameron collected
Answer: Mandy collected 32 Cameron collected 8
4 0
3 years ago
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A spherical solid of volume 123,456 is melted and recast into a solid cube. What is the side length of the cube?
pochemuha

Answer:

Step-by-step explanation:

Let the length of each side of the cube be

x meters.

x3= 123,456

3 square root x3= 3 square root  123,456

x=49.8 m

The length of each side of the cube is

49.8 meters

8 0
3 years ago
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) Si on multiplie les deux membres d'une inégalité par un même nombre négatif non nul, on obtient une inégalité de même sens.
iogann1982 [59]

Answer:

John has 9 different flags that he wants to hang on the wall. How many different ways can the flags be arranged in a row?

Step-by-step explanation:

John has 9 different flags that he wants to hang on the wall. How many different ways can the flags be arranged in a row?

7 0
4 years ago
Hector left to take his dog for a walk at 6:25 P.M. I have returned home from his walk at 6:51 P.M. How long was Hector's walk?
ehidna [41]
51-25= 26
his walk was 26 minutes
5 0
3 years ago
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