Can someone help me answer some of these questions?

Mathematics

1 answer:

ss7ja [257]3 years ago

7 0

Answer:55

Step-by-step explanation:

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What is true about the solution of x^2 / 2x - 6 = 9 / 6x - 18

DanielleElmas [232]

$\text{The domain}\\2x-6\neq0\ \wedge\ 6x-18\neq0\to x\neq3\\\\\dfrac{x^2}{2x-6}=\dfrac{9}{6x-18}\\\\\dfrac{x^2}{2(x-3)}=\dfrac{9}{6(x-3)}\ \ \ |\cdot6\\\\\dfrac{3x^2}{x-3}=\dfrac{9}{x-3}\iff3x^2=9\ \ \ |:3\\\\x^2=3\to x=\pm\sqrt3$

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3 years ago

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Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

BabaBlast [244]

Answer:

Step-by-step explanation:

x^2+20=2x move 2x to the left

x^2-2x+20=0

Quadratic formula =

x=1± i√19

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Pls help it says what is volume and how is it measured pls help

solmaris [256]

Volume is the measure of how much space a 3d object takes up (like area for 2d objects). It is measured in cubic parts (5 cubic inches, 12 cubic centimeters). There are many volume formulas. The easiest and most common is of the volume of a rectangular prism, for which you do lenght * width * height..

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Diego's investment in a stock grew 28% to $448. how much did he invest?

jolli1 [7]

$322.56
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A school district is considering moving the start of the school day at Groveland High from 8:00 a.m. to 9:00 a.m. to allow stude

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