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ElenaW [278]
3 years ago
5

Help on this one plsssssss its 54 more secs

Mathematics
1 answer:
Reil [10]3 years ago
4 0

Answer:

45

Step-by-step explanation:

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6:1 equivalent to the ratio 12:3
Lady bird [3.3K]

Answer:

No

Step-by-step explanation:

multiply each side of 6:1 by 3 to get it equivalent. 18:3 is not equal to 12:3 so no

3 0
2 years ago
Read 2 more answers
How to Find the vertex of f(x)=-8x^2-8x+7
charle [14.2K]

Answer:

The answer to your question is: (1/2, 5)

Step-by-step explanation:

Parabola                     f(x) = 8x² - 8x + 7

                                     y = 8x² - 8x + 7

Vertical Parabola equation

( x - h)² = 4p (y - k)            Transform the original equation to this form

8x² - 8x       = y - 7            

8(x² - x  + (   )²)  = y - 7       Complete squares

8 (x² - x + (1/2)²) = y - 7 + 2    Simplification

8 (x² - x + 1/4) = y - 5

                                 (x - 1/2)² = 1/8 (y - 5)

Finally Vertex

                        (1/2 , 5)

7 0
3 years ago
2 cm to 25 miles equal to 12 cm what is the miles
nekit [7.7K]

Answer:

I'm sry I don't understand but good luck mate

Step-by-step explanation:

4 0
3 years ago
Write your answer as a power.
Trava [24]

Answer:

8

Step-by-step explanation:

2 times 4 is 8

5 0
2 years ago
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observe as seguintes situações e sua representação em linguagem matematica dois numeros x e y são tais 2x y=6 x-y=3
agasfer [191]

Answer:

The value of x any y are "-5.29 and 0.79" and "3.79 and -2.29"

Step-by-step explanation:

Given values:

2xy =6.....(a)\\\\x-y= 3.....(b)\\\\

After solve equation (a) we get

\ equation: \\\\2xy= 6\\\\xy =\frac{6}{2} \\\\xy = 3.....(x)\\\\

After solve equation (b) we get

\ equation: \\\\x-y =3\\\\x= 3+y....(x1)\\

put the value of x in to equation (x)

(3+y)y = 3\\

y^2+3y-3=0\\\\\ compare \ the \ value \ with \ ay^2+by+c=0\\a= 1\\b=3\\c=-3\\\ Formula: \\y= \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\y= \frac{-3\pm \sqrt{9+12}}{2}\\y= \frac{-3\pm \sqrt{21}}{2}\\

The value of y is = -5.29 and 0.79, put the value of y in x1 equation so, we get: 3.79 and -2.29

5 0
3 years ago
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