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3 years ago

What is the property name of 3 (6 + 2 ) = ( 3 x 6 ) + ( 3 x 2) ?

Mathematics

1 answer:

ser-zykov [4K]3 years ago

8 0

Answer:

The distributive property

Step-by-step explanation:

It says

$a(b+c)=a(b)+a(c)$

I hope you understand the generalization of the property.

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What is the constant of preportionallity in the equation y= 2.5x?

e-lub [12.9K]

Answer:

2.5

Step-by-step explanation:

$y = 2.5x \\equating \: it \: with \: y \: = kx \: where \: k \: is \: any \: \\ constant. \\ k = 2.5 \\$

Thus, constant of proportionality = 2.5

7 0

2 years ago

Hi guys i need help solving −2.4n−3 and −7.8n+2.

Airida [17]

Answer:

-5 = -5.4n

Step-by-step explanation:

- 2.4n -3 = -7.8n+2

add 2.4 to both sides

which would give you

-3 = -5.4n + 2

then you would subtract -2 from both sides

and -5 = -5.4n and this is one solution

5 0

2 years ago

PLEASE HELP!! (will give brainliest to best answer)<br><br> *image below*

GalinKa [24]

Answer:

Its 405, theres no negatives so the answer wouldn’t be negative, and then just multiply and you get 405! Hope this helped!

3 0

3 years ago

What did a the surface area of the square pyramid below?

Mamont248 [21]

Answer:

Area of the square pyramid = $156\,cm^2$

Step-by-step explanation:

The Surface area of the square pyramid :

Area of the four triangular faces+ Area of the square base

$=(2\times Base \times Height )+ (Side\times Side)$

For triangle:

$Base=6\,cm\\Height=10\,cm$

Side of the square base= $6\,cm$

Area of the figure is:

$=(2\times 6 \times10 )+(6\times 6)\\\\=120+36\\\\=156\,cm^2$

The area of the square pyramid is : $156\,cm^2$

4 0

3 years ago

Please help!! due in 5 mins

Serhud [2]

Question 8 should be y=-5/2x-1. And question 9 should be y=1/2x-7.

6 0

2 years ago