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Anni [7]
3 years ago
10

Technician A says that a lead acid battery uses straight Hydrochloric acid for electrolyte. Technician B says that a lead acid b

attery uses straight sulfuric acid for electrolyte.
Computers and Technology
2 answers:
konstantin123 [22]3 years ago
7 0

Technician B is correct

It is safe to say that Lead acid uses sulfuric acid. When fully charged, the electrolyte consist of 40% concentrated sulfuric acid and the remainder consist of mostly water. However, as it discharges, both the positive and the negative plates turn into lead sulfate with the electrolyte loosing much of its dissolved sulfuric acid and water.

Tema [17]3 years ago
4 0

Technician A is correct because i tried Technician B and it was wrong so its Technician A

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You have spent $4,000 on liquor for your bar. Your bar sales have been $24,000. What is your cost of sales for liquor, expressed
amid [387]

Answer:

17%

Explanation:

Given parameters:

Cost price of liquor = $4000

Total sale = $24000

Unknown:

Percentage cost of sale for liquor = ?

Solution:

To find the percentage cost of sale;

       %Cost of sale of liquor = \frac{cost price of liquor}{Total cost of sale }   x 100

Input the variables;

       %Cost of sale of liquor = \frac{4000}{24000}  x 100 = 16.67% = 17%

8 0
3 years ago
Select the guidelines you should follow when creating a memo.
densk [106]

Answer:

Get to the point at the beginning of the memo.

Keep the paragraph lengths short.

At the end, inform the readers if there are specific actions they need to take.

Explanation:

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Which visual aid should Emil use to compare and contrast the political systems in three countries?
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A vent diagram. It helps to outline the differences and the similarities between the three countries
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3 years ago
What would you have to know about the pivot columns in an augmented matrix in order to know that the linear system is consistent
Scrat [10]

Answer:

The Rouché-Capelli Theorem. This theorem establishes a connection between how a linear system behaves and the ranks of its coefficient matrix (A) and its counterpart the augmented matrix.

rank(A)=rank\left ( \left [ A|B \right ] \right )\:and\:n=rank(A)

Then satisfying this theorem the system is consistent and has one single solution.

Explanation:

1) To answer that, you should have to know The Rouché-Capelli Theorem. This theorem establishes a connection between how a linear system behaves and the ranks of its coefficient matrix (A) and its counterpart the augmented matrix.

rank(A)=rank\left ( \left [ A|B \right ] \right )\:and\:n=rank(A)

rank(A)

Then the system is consistent and has a unique solution.

<em>E.g.</em>

\left\{\begin{matrix}x-3y-2z=6 \\ 2x-4y-3z=8 \\ -3x+6y+8z=-5  \end{matrix}\right.

2) Writing it as Linear system

A=\begin{pmatrix}1 & -3 &-2 \\  2& -4 &-3 \\ -3 &6  &8 \end{pmatrix} B=\begin{pmatrix}6\\ 8\\ 5\end{pmatrix}

rank(A) =\left(\begin{matrix}7 & 0 & 0 \\0 & 7 & 0 \\0 & 0 & 7\end{matrix}\right)=3

3) The Rank (A) is 3 found through Gauss elimination

(A|B)=\begin{pmatrix}1 & -3 &-2  &6 \\  2& -4 &-3  &8 \\  -3&6  &8  &-5 \end{pmatrix}

rank(A|B)=\left(\begin{matrix}1 & -3 & -2 \\0 & 2 & 1 \\0 & 0 & \frac{7}{2}\end{matrix}\right)=3

4) The rank of (A|B) is also equal to 3, found through Gauss elimination:

So this linear system is consistent and has a unique solution.

8 0
3 years ago
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