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3 years ago

9

Pls answer now I need it ;-; No fake answers >:(

2 answers:

Sladkaya [172]3 years ago

8 0

Sorry i dont know it

lozanna [386]3 years ago

6 0

Crusty musty toes hsisjdhdjnebfjcufisbfjkcjfnfjfjekndnckdndbfkdnfn

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Solve the simultaneous equations <br> 5x + 6y = 3<br> 2x - 3y = 12

Serhud [2]

Answer: x =3; y = -2

$\left \{ {{5x+6y=3} \atop {2x-3y=12}} \right.\\\\\left \{ {{x=\frac{3-6y}{5} } \atop {2x-3y=12}} \right.\\\\\left \{ {{x=\frac{3-6y}{5} } \atop {2.\frac{3-6y}{5}-3y =12}} \right.\\\\\left \{ {{x=\frac{3-6y}{5} } \atop {6-12y-15y=12.5}} \right.\\\\\left \{ {{x=\frac{3-6y}{5} } \atop {17y=6-60=-54}} \right.\\\\\left \{ {{x=\frac{3-6y}{5} } \atop {y=-54/27}} \right.\\\\\\ \left \{ {{x=\frac{3-6y}{5} } \atop {y=-2}} \right.\\\\\left \{ {{x=3} \atop {y=-2}} \right.$

Step-by-step explanation:

7 0

3 years ago

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Please help me out with this!

kotykmax [81]

I don't really grab the concept of this but it's basically numbering the graph ang filling the coordinates in the x and y spaces
y=4/-2+ x=5/-3

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3 years ago

Evaluate 4a when a=7

Alex73 [517]

Answer:28

Step-by-step explanation:

4a when a=7

So..

4(7)=28

Hope that helps :)

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3 years ago

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A cylinder has an 18-inch diameter and is 15 inches tall. It is filled to the top with water. A 6-inch-diameter ball is

Goshia [24]

water in cylinder = 1.179π in³

<h3>Further explanation</h3>

Volume is a derivative quantity derived from the length

The unit of volume can be expressed in liters or milliliters or cubic meters

The volume of the cylinder

V = πr².h

the volume of ball

V= 4/3πr³

volume of cylinder

$\tt V=\pi.9^2.15=1215\pi$

volume of the ball

$\tt V=\dfrac{4}{3}\pi.r^3\\\\V=\dfrac{4}{3}.\pi.3^3=36\pi$

water in the cylinder

V cylinder - V ball

$\tt 1215\pi-36\pi=1179\pi$

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A certain triangle has 30 angle and 60 angle which much be a true statement about the triangle

Marina CMI [18]

A the second side is twice as long as the shortest

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