2 years ago

Hey Please someone help me!!!!! Asap

Mathematics

1 answer:

storchak [24]2 years ago

8 0

(0,4) and (1,0)
Hope this helps

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Select and use the most direct method to solve 2x(x + 1.5) = -1. Describe and justify the methods you used to solve the quadrati

miskamm [114]

Step-by-step explanation:

Given that,

A quadratic equation,

2x(x + 1.5) = -1

We need to solve the quadratic equation. Firstly we need to simplify the above equation to form it as $ax^2+bx+c=0$ .

So,

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

Here, a = 2, b = 3 and c = 1

The roots of the given equation can be given by :

$x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}$

Putting all the values we get :

$x=\dfrac{-b\pm \sqrt{b^2+4ac} }{2a}, \dfrac{-b\pm \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-3\pm \sqrt{3^2+4(2)(1)} }{2(2)}, \dfrac{-3\pm \sqrt{3^2-4(2)(1)} }{2(2)}\\\\x=\dfrac{-3+1}{4}, \dfrac{-3-1}{4}\\\\x=-\dfrac{1}{2}, -1$

So, the roots of the given equation is -1/2 and -1.

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2 years ago

Find the area and perimeter of this shape.

denpristay [2]

Answer:

Step-by-step explanation:

since, it is a parallelogram we can find the area easily just by multiplying the base and height

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1 year ago

Jack’s bank statement shows an account balance of –$25.50. Which describes the magnitude, or size, of the debt in dollars? $50.5

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Answer:

$25.50

Step-by-step explanation:

because the magnitude of the debt is the distance from zero.

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327 - 184 = 143
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r-ruslan [8.4K]

B

You would divide 45 mm/15mm to get 3. Multiply 3 by 27 to get 81 mm.

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