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erica [24]
3 years ago
12

What is the solution to the system of eqautions x-2y=4 -3x+6y=12

Mathematics
1 answer:
irina1246 [14]3 years ago
6 0

Answer:

I think the answer is... C. No Solution because if you plug in those points for x & y, it has no solution... It is false... so yeah... I'm really really sorry if I'm wrong...

Step-by-step explanation:

x -2y = 4                                      - 3x + 6y = 12

-2 - 2(4) = 4                                 - 3(-2) + 6(4) = 12

-2 - 8 = 4                                      6 + 24 = 12

-10 = 4                                          30 = 12


x -2y = 4                                      - 3x + 6y = 12

0 - 2(-2) = 4                                - 3(0) + 6(-2) = 12

0 + 4 = 4                                        0 - 12 = 12

 4 = 4                                               - 12 = 12    


                           

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Order number from least to greates <br> 9/5 -2.5 -1.1 -4/5 0.8 ​
Brut [27]

Answer:

Step-by-step explanation:

Start by writing these five numbers in just one format (improper fractions with denominator 10):

9/5 = 18/10, and

-2.5 = -25/10, and

-1.1 = -11/10, and

-4/5 = -8/10, and, finally

0.8 = 8/10

The smallest of these (the least) is -25/10, and

the largest is 18/10.

Arranged in ascending order, we have:

-25/10, -11/10, -8/10, 8/10, 18/10, or

-2.5, -1.1, -4/5, 0.8, 9/5

5 0
3 years ago
5.
irina [24]

Answer:

160 m²

384 m²

Step-by-step explanation:

The area of a trapezium is given by :

A = 1/2(a + b)h

h = height ; a and b = lengths

From the diagram :

A = 1/2(12 + 20)10

A = 1/2(32)10

A = 16 * 10

A = 160 m²

2.)

Area of parallelogram = base * height

Base = 24 ; h = 16

A = 24 * 16

A = 384 m²

7 0
2 years ago
Hi i need a lil help 6(x + 4) = 48 x=
valkas [14]

Answer:

x=4

Step-by-step explanation:

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4 0
3 years ago
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8. You are planning to use a ceramic tile design in your new bathroom. The tiles are blue-and-white equilateral triangles. You d
ira [324]

Step 1

Find the area of one equilateral triangle

Applying the law of sines

Area=\frac{1}{2} *a*b*sin C

in this problem

a=b=7 cm

C=60 degrees

so

Area=\frac{1}{2} *7*7*sin 60

Area=\frac{1}{2} *49*\frac{\sqrt{3}}{2}  \\ Area=49*\frac{\sqrt{3}}{4}cm²

Step 2

To calculate the area of the hexagon multiply the area of one equilateral triangle by 6

Area Hexagon=6*[49*\frac{\sqrt{3}}{4}]  \\ Area Hexagon=73.5*\sqrt{3}cm²

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the answer is the option

73.5 sqrt 3cm²

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3 years ago
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KIM [24]
8 is to 64 as 2 is to 16

x=16
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2 years ago
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