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2 years ago

6

Justin cuts a 10-inch-long roll of cookie dough into 6 equal-length pieces. How many inches long is each piece of cookie dough?

Type your answer as a mixed number in lowest terms.

1 answer:

Artist 52 [7]2 years ago

5 0

each one would be two and a half inches

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Hi, can someone please help, and possibly explain the answer please.

mr_godi [17]

Answer:

$x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

Step-by-step explanation:

Quadratic formula: $x=\frac{-b\±\sqrt{b^2-4ac} }{2a}$ when the equation is $0=ax^2+bx+c$

The given equation is $1=-2x+3x^2+1$ . Let's first arrange this so its format looks like $y=ax^2+bx+c$ :

$1=-2x+3x^2+1$

$1=3x^2-2x+1$

Subtract 1 from both sides of the equation

$1-1=3x^2-2x+1-1\\0=3x^2-2x+0$

Now, we can easily identify 3 as a, -2 as b and 0 as c. Plug these into the quadratic formula:

$x=\frac{-b\±\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-2)\±\sqrt{(-2)^2-4(3)(0)} }{2(3)}$

I hope this helps!

8 0

2 years ago

7 tenths times 10 is another problem that i need help on

Elza [17]

Hi there!

7 tenths times 10 is pretty easy and can be done on a calculator.
7 tenths is 0.7 in standard form.

0.7 × 10 = 7

Because if you think about it...
Tenths is like being dropped down by ten... then you multiply by ten which brings it back up to whole number seven. It may not make sense but that's what it is.

Hope this helps!

8 0

3 years ago

PLEASE CAN SOMEBODY HELP PLEASE I AM BEGGING YOU PLEASE

rusak2 [61]

(3,-1)? i believe that's what it would be

5 0

3 years ago

Read 2 more answers

Graph the line on the coordinate plane provided:

givi [52]

Yay yay you got this

6 0

2 years ago

Use the elimination method to solve the system of linear equations. 3x - 2y = -2 4x - 3y = -4

Oksana_A [137]

Answer:

(3x-2y=-2)×3

(4x-3y=-4)×2

then minus

x=2

then for y take one equation

3x-2y=-2

6-2y=-2

y=4

8 0

2 years ago