3 years ago

When Tim says that word problems don't use mathematical notation, what does he mean

Mathematics

1 answer:

Zepler [3.9K]3 years ago

5 0

Answer:they dont use symbols such as x = + - / % or *

Step-by-step explanation: just look up what mathematical notation means dude

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Montano1993 [528]

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3 years ago

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What’s the equation in vertex form?

pshichka [43]

Answer:

$\large\boxed{y=(x+5)^2-64}$

Step-by-step explanation:

$\text{The vertex form of equation}\ y=ax^2+bx+c:\\\\y=a(x-h)^2+k\\\\h=\dfrac{-b}{2a},\ k=f(h)\\\\\text{We have the equation:}\ y=x^2+10x-39\to x=1,\ b=10,\ c=-39.\\\\\text{Substitute:}\\\\h=\dfrac{-10}{2(1)}=\dfrac{-10}{2}=-5\\\\k=f(-5)=(-5)^2+10(-5)-39=25-50-39=-64\\\\\text{Finally:}\\\\y=1(x-(-5))^2-64=(x+5)^2-64$

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