3 years ago

Choose the missing number to make equivalent fractions.

Mathematics

1 answer:

nydimaria [60]3 years ago

6 0

the answer to they quetion is C.

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steps below

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Vertex of Shape I : (1,1) (2,1) (2,2) (1,2) ---- (x,y)

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3 years ago

<img src="https://tex.z-dn.net/?f=4%28x%20-%201%29%20%7B%7D%5E%7B2%7D%20%20-%209" id="TexFormula1" title="4(x - 1) {}^{2} - 9"

Aloiza [94]

Step-by-step explanation:

(a-b)^2=(a^2-2*a*b+b^2)

4*(x^2-2x+1)-9=4x^2-8x+4-9=4x^2-8x-5

if you have to calculate the Δ

there is it: 4x^2-8x-5=0

Δ=b^2-4*a*c=64-4*4*(-5)=64+80=144

$x_{1,2}=$ -b±Δ/2*a=8±12/8=

$x_{1}$ =8+12/8=20/8|:4=5/2

$x_{2}$ =8-12/8=-4/8|:4=-1/2

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3 years ago