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3 years ago

Why must eye protection be worn at all times in welding shop?

2 answers:

6 0

The fumes are way to strong. Plus you'd have to rush to the hospital if something flew in your eyes or cut your eyes. Its always good to have protection.

kati45 [8]3 years ago

4 0

Because of the ligting of the machine and you can go blind if theres no eye protection

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Which polynomial is in standard form?

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Answer:

Step-by-step explanation:

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3 years ago

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Answer: Check explanation

Step-by-step explanation: (3,-5), because that's the point where the two lines intersect.

Y=-2x+1

Y=-3/2x-1/2

Substitute the Y to get -2x+1=-3/2x-1/2

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2 years ago

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Fynjy0 [20]

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2 years ago

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noname [10]

Answer:

D. x = 7 and x = 14

Step-by-step explanation:

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3 years ago

Use matrix addition to solve this equation: B + 15 −7 4 0 1 2 = 1 2 12 4 0 2 b11 = b12 = b13 = b21 = 4 b22 = −1 b23 = 0

Arada [10]

Answer:

$b_{11}=-14,b_{12}=9,b_{13}=8,b_{21}=4,b_{22}=-1,b_{23}=0$

Step-by-step explanation:

The given matrix addition is

$B+\begin{bmatrix}15&-7&4\\ 0&1&2\end{bmatrix}=\begin{bmatrix}1&2&12\\ 4&0&2\end{bmatrix}$

We need to find the elements of matrix B.

Let $B=\begin{bmatrix}b_{11}&b_{12}&b_{13}\\ b_{21}&b_{22}&b_{23}\end{bmatrix}$

Substitute the value of matrix.

$\begin{bmatrix}b_{11}&b_{12}&b_{13}\\ b_{21}&b_{22}&b_{23}\end{bmatrix}+\begin{bmatrix}15&-7&4\\ 0&1&2\end{bmatrix}=\begin{bmatrix}1&2&12\\ 4&0&2\end{bmatrix}$