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Tju [1.3M]
3 years ago
13

PLEASE HELP!!!!!!!!!

Mathematics
1 answer:
Likurg_2 [28]3 years ago
4 0

Answer:

top right

Step-by-step explanation:

it cannot be the bottom ones and the top left one is showing 2x-1 which is not either of the equations

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Answer is provided in the image attached.

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Write the quadratic equation whose roots are −2 and 2, and whose leading coefficient is 3.
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Answer:

3x^2-12=0

Step-by-step explanation:

<u>Quadratic Equation</u>

A quadratic equation also called a second-degree equation is a special polynomial whose highest degree is two.

The general form of the quadratic equation is

ax^2+bx+c=0

Where a is known as the leading coefficient. Another form to write the quadratic equation is

a(x-x_1)(x-x_2)=0

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Operating

3(x^2-4)=0

\boxed{3x^2-12=0}

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4 years ago
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The perimeter of the basketball court is 98 meters.
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Lucy is raising money for a school trip by selling lollipops and bags of
sukhopar [10]
<h3>16 lollipops and 9 bags of chips are sold</h3>

<em><u>Solution:</u></em>

Let "x" be the number of lollipops sold

Let "y" be the number of bags of chips sold

Cost of 1 lollipop = $ 1.50

Cost of 1 bag of chip = $ 1.75

<em><u>Yesterday Lucy made $39.75 from selling a total of 25  lollipops and bags of chips</u></em>

Therefore,

x + y = 25

y = 25 - x -------- eqn 1

<em><u>Yesterday Lucy made $39.75</u></em>

Therefore,

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x \times 1.50 + y \times 1.75 = 39.75

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<em><u>Substitute eqn 1 in eqn 2</u></em>

1.5x + 1.75(25 - x) = 39.75

1.5x + 43.75 - 1.75x = 39.75

0.25x = 4

<h3>x = 16</h3>

<em><u>Substitute x = 16 in eqn 1</u></em>

y = 25 - 16

<h3>y = 9</h3>

Thus 16 lollipops and 9 bags of chips are sold

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