3 years ago

Please help it is neeeded!!!!!!!!!!!!!!!

Mathematics

1 answer:

4vir4ik [10]3 years ago

3 0

area of a side = S^2 ( or s x s)

1/3 x 1/3 = 1/9

area = 1/9 square yard

Answer is C

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Plz help me am very confused

brilliants [131]

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2) You multiply 1428 of the copies of flyers to the 0.10 then add that answer to the answer of number 1

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The first three steps in determining the solution set of the system of equations algebraically are shown in the table. y = −x2 +

lianna [129]

You have a system of equations $\left \{ {{y = -x^2+2x-9} \atop {y =-6x+6}} \right.$ .

1. Substitude right side of second equation into the left side of the first equation: $-6x+6=-x^2+2x-9$ .

2. Solve this equation:
$x^2-2x+9-6x+6=0, \\ x^2-8x+15=0, \\ D=(-8)^2-4\cdot 1\cdot 15=64-60=4, \\ \sqrt{D}=2, \\ x_{1,2}=\dfrac{8\pm 2}{2 } =3,5$ .

3. Find y:
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4. The solutions of the system are: (3,-12) and (5,-24).
Answer: Correct choice is A.

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3 years ago

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Solve 80/100 = 68/n using cross multiplication.

Karo-lina-s [1.5K]

80n = 68*100

80n = 6800

n = 6800/80

n = 85

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4 years ago

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