3 years ago

Write the simplified form of the following expression ?. 2x^2y+3x^2+4y+3x^2y+2y

1 answer:

7 0

To answer the question, combine the terms having the same nature of variables in the given above,
(2x²y + 3x²y) + 3x² + (4y + 2y)
The simplification of the expression leads to the answer,
5x²y + 3x² + 6y

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What is the height of a square pyramid with a volume of 75 cubic feet and base length of 5 feet

natima [27]

So hmm notice the picture below

is a "square" pyramid, thus, the base is a square, all sides are the same

now, we know the volume is 75 and one side is 5

thus $\bf \textit{volume of a pyramid}\\\\
V=\cfrac{1}{3}\cdot Base\cdot height\qquad 
\begin{cases}
Base=length\cdot width\\
\qquad\qquad 5\cdot 5=25\\
V=75
\end{cases}\\\\\\ 75=\cfrac{1}{3}\cdot 25\cdot h$

solve for "h" or height