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2 years ago

9

Find the equation of the line through the point (-2,-2) that is perpendicular to the line y=2x-1

1 answer:

Lerok [7]2 years ago

5 0

A line perpendicular to y = 2x - 1 must have the slope -1/2 (negative reciprocal of 2).

Thus, the eq'n of the new line is y+2 = (-1/2)(x+2).

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stellarik [79]

your right Step-by-step explanation:

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2 years ago

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4vir4ik [10]

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2 years ago

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2 years ago

The price of an item has risen to $276 today. Yesterday it was $115. Find the percentage increase.

Nezavi [6.7K]

Are you kidding me, bro? lol

276-115=131
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0.47% increase

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3 years ago

The height of a triangle is 4 times its base. The area of the triangle is 288 square. Find the base and the height of the triang

Vanyuwa [196]

$\bf \textit{area of a triangle}\\\\
A=\cfrac{1}{2}bh\qquad 
\begin{cases}
b=base\\
h=height\\
----------\\
h=4b\leftarrow 
\begin{array}{llll}
\textit{height is 4}\\
\textit{times the base}
\end{array}\\
A=288
\end{cases}\implies 288=\cfrac{1}{2}\cdot b\cdot 2b$

solve for "b", to see what the base is

what about the height? well, h = 4b

7 0

3 years ago