4 years ago

Solve with completing the square method:6x²-7x+2=0 and ax²+bx+c=0

1 answer:

7 0

$6x ^2-7x+2=0\\ \\ a=6 , \ b = -7 , \ c=2 \\ \\\Delta = b^{2}-4ac = (-7)^{2}-4*6*2=49-48=1 \\ \\x_{1}=\frac{-b-\sqrt{\Delta }}{2a} =\frac{7-\sqrt{1}}{2*6}=\frac{7-1}{12} =\frac{6}{12}= \frac{1}{ 2}\\ \\x_{2}=\frac{-b+\sqrt{\Delta }}{2a} =\frac{7+\sqrt{1}}{2*6}=\frac{7+1}{12} =\frac{8}{12}= \frac{2}{ 3}$

You might be interested in

Which statements are true regarding undefinable terms in geometry?All that apply.

valentinak56 [21]

D.A plane consist of an infinite set of lines.

8 0

3 years ago

Work out 5.2 % of 628.55 km Give your answer rounded to 2 DP.

Setler [38]

18.63 is your answer please give brainliest!

7 0

3 years ago

Please someone help me Only the ODD questions please.

Klio2033 [76]

I hope you can read this, and I hope you understand how I did 7. I probably overworked it, and it was possibly a simpler way to get it.

7 0

3 years ago

bonufazy [111]

If similarity ratio means the ratio between the lengths of the cubes:

$\frac{ L_1^{3} }{ L_2^{3} } = \frac{V_1}{V_2} \\ \\ ratio = \frac{L_1}{L_2} = \frac{\sqrt[3]{V_1} }{\sqrt[3]{V_2} }$

5 0

3 years ago

3.102 x 10^3 in standard form

postnew [5]

Answer:

3102x

Step-by-step explanation:

6 0

3 years ago