2 years ago

Classify the triangle by its sides. The diagram is

Mathematics

2 answers:

Andreas93 [3]2 years ago

5 0

Answer:

D) Isosceles

Step-by-step explanation:

An isosceles triangle is the triangle that has 2 sides that are the same.

Cloud [144]2 years ago

4 0

Answer:

Step-by-step explanation:

It has 2 equal sides

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3 years ago

Work out and simplify where possible<br><br>7/15+2/15

alisha [4.7K]

Answer:

3/5

Step-by-step explanation:

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3 years ago

If y varies directly as (x+3) and inversely as (x-3) and y=21 when x=4, what is the equation for y in terms of x?

igor_vitrenko [27]

$\bf \qquad \qquad \textit{double proportional variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\$

$\bf \textit{\underline{y} varies directly as (x+3) and inversely as (x-3)}\implies y=\cfrac{k(x+3)}{x-3}
\\\\\\
\textit{we also know that }
\begin{cases}
y=21\\
x=4
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\\\\\\
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3 years ago