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3 years ago

Evaluate 2r²+3s³-r²+4+²-r²

2 answers:

7 0

$2r^2 + 3s^3-r^2+4^2+-r^2 \\ \\ 2r^2 + 3s^3 - r^2 + 16 + -r^2 \\ \\ 2r^2 + 3s^3 = r^2 16 - r^2 \\ \\ (2r^2 - r^2-r^2) + 3s^3+ 16 \\ \\ 3s^3 + 16 \\ \\ Answer: 3s^3 + 16$

NemiM [27]3 years ago

3 0

$2r^2 + 3s^3 -r^2 + 4^2 - r^2\\\\2r^2 -r^2 -r^2 + 3s^3 + 4^2\\\\3s^3 + 4^2\\\\\boxed{\bf{3s^3+16}}$

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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

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3 years ago

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Masja [62]

Answer:

$A^{-1}=\begin{bmatrix}1 & 2\\ -4 & -7\end{bmatrix}$

Step-by-step explanation:

$A=\begin{bmatrix}-7 & -2\\ 4 & 1\end{bmatrix}$

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$\therefore A^{-1}=\begin{bmatrix}1 & 2\\ -4 & -7\end{bmatrix}$

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Hence, confirmed

6 0

4 years ago

What is the volume, in cubic in, of a rectangular prism with a height of 8in, a width of 5in, and a length of 9in?

Maslowich

Answer:

360 in ^3

Step-by-step explanation:

The volume is given by

V = l*w*h

= 8 * 5 * 9

= 360 in ^3

3 0

3 years ago