2 years ago

I need help with this one and someone help me

Mathematics

1 answer:

Mekhanik [1.2K]2 years ago

6 0

The value of angle Y is -120° because you know that angle S is half of angle Y and -60*2 equals -120°. Hope that helps!

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Two cyclists leave town at the same time on the same road going in the same direction. Cyclist a is going 6 miles per hour fast

tia_tia [17]

24x=8x+48
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/16 /16

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2 years ago

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Using the given points and line, determine the slope of the line. (1, 2) and (2, 1) slope = 2 slope = 1 slope = -1

Bas_tet [7]

Answer:

-1

Step-by-step explanation:

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2 years ago

23 points to whoever can answer this question !!

yKpoI14uk [10]

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ExtremeBDS [4]

Answer:

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2 years ago

Consider the first five steps of the derivation of the Quadratic Formula.

lara31 [8.8K]

Answer:

Full proof below

Step-by-step explanation:

$\displaystyle ax^2+bx+c=0\\\\ax^2+bx=-c\\\\x^2+\biggr(\frac{b}{a}\biggr)x=-\frac{c}{a}\\\\x^2+\biggr(\frac{b}{a}\biggr)x+\biggr(\frac{b}{2a}\biggr)^2=-\frac{c}{a}+\biggr(\frac{b}{2a}\biggr)^2\\\\x^2+\biggr(\frac{b}{a}\biggr)x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}\\ \\\biggr(x+\frac{b}{2a}\biggr)^2=-\frac{4ac}{4a^2}+\frac{b^2}{4a^2}\\ \\\biggr(x+\frac{b}{2a}\biggr)^2=\frac{b^2-4ac}{4a^2}\\ \\x+\frac{b}{2a}=\pm\frac{\sqrt{b^2-4ac}}{2a}\\ \\x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

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1 year ago