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olasank [31]
3 years ago
8

I need this answer ASAP is it A.30 B.45 C.75 D.90 Plz I need this ASAP

Mathematics
2 answers:
daser333 [38]3 years ago
6 0
The answer is c for this one
GenaCL600 [577]3 years ago
5 0

Answer:c

Step-by-step explanation:

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Student scored in the 83rd
melamori03 [73]

Answer:b

Step-by-step explanation:

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If s waves travel at 5 km/s how long do they take to travel 100 km
bixtya [17]
20 seconds
i feel like that is right
5 0
3 years ago
I don't really know on this one. I'm thinking it's because if T kept going it would go into a 3rd quadrant but I'm not too sure.
enyata [817]
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8 0
3 years ago
What is X if
umka2103 [35]

Answer:

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

Step-by-step explanation:

\begin{bmatrix} - 1 & - 2\\ 4 & 8\end{bmatrix} +X = \begin{bmatrix} - 5 & - 1\\ 2 & 1\end{bmatrix}

X = \begin{bmatrix} - 5 & - 1\\ 2 & 1\end{bmatrix}-\begin{bmatrix} - 1 & - 2\\ 4 & 8\end{bmatrix}

X = \begin{bmatrix} - 5-(-1) & - 1-(-2)\\ 2-4 & 1-8\end{bmatrix}

X = \begin{bmatrix} - 5+1 & - 1+2\\ 2-4 & 1-8\end{bmatrix}

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

7 0
3 years ago
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