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3 years ago

HELP FAST! A) 180 = 30 + (x + 60) B) 180 + 30 = x + 60 C) 90 = 30 + (x + 60)

Mathematics

2 answers:

Fantom [35]3 years ago

6 0

A) 180 = 30 (x+60) :))) of

Tju [1.3M]3 years ago

6 0

Answer:

a) x = 90

b) x = 150

c) x = 0

Step-by-step explanation:

a) 180 = (x) + (30 + 60) simplify both steps of equation

180 = x + 90 combine the like terms

x + 90 = 180 flip the equation

x + 90 - 90 = 180 - 90 subtract 90 from both sides

x = 90

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$\qquad$ $\green{\twoheadrightarrow \bf \dfrac{d}{dx}\bigg[ \dfrac{x^3+5x+2 }{x^2-1}\bigg]} \\$

$\qquad$ $\twoheadrightarrow \sf \dfrac{(x^2-1) \dfrac{d}{dx}(x^3+5x+2) - ( x^3+5x+2) \dfrac{d}{dx}(x^2-1)}{(x^2-1)^2 }\\$

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$\qquad$ $\pink{\sf \because \dfrac{d}{dx} x^n = nx^{n-1} }\\$

$\qquad$ $\twoheadrightarrow \sf \dfrac{3x^4+5x^2-3x^2-5-(2x^4+10x^2+4x)}{(x^2-1)^2 }\\$

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$\qquad$ $\pink{\therefore \bf{\green{\underline{\underline{\dfrac{d}{dx} \dfrac{x^3+5x+2 }{x^2-1}} = \dfrac{x^4-8x^2-4x-5}{(x^2-1)^2 }}}}}\\\\$

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