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sergij07 [2.7K]
3 years ago
7

A laboratory technician needs to make a 40-liter batch of a 40% acid solution. how can the laboratory technician combine a batch

of an acid solution that is pure acid with another that is 20% to get the desired concentration? 
Mathematics
1 answer:
Kobotan [32]3 years ago
5 0
You need to do is 40 times 40%
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On average, about 240 people visit a local food pantry every day and search up groceries. On an extremely cold day, visitors to
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The answer is 420 people
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3 years ago
Read 2 more answers
Please help with this
GalinKa [24]
The answer is 20


Reason: so the W is 4 and the L is 6 so you do 4+4=8 then you do 6+6=12 then you add the two together and get 20
7 0
3 years ago
Given the graph of a function f. Identify the function by name. Then Graph, state domain & range in set notation:A) f(x) +2B
WARRIOR [948]

The function in the graph has the name of square function.

The domain of a function is all values of x the function can have. The domain of this function is all real numbers:

\mleft\lbrace x\in\R\mright\rbrace

The range of a function is all values of y the function can have. The range of this function is all positive numbers, including zero:

\mleft\lbrace y\in\R\mright|y\ge0\}

In order to graph f(x) + 2, we just need to translate the graph 2 units up. To find the new points, we need to increase all y-coordinates by 2:

(-2, 6), (-1, 3), (0, 2), (1, 3), (2, 6)

Domain: {x ∈ ℝ}

Range: {y ∈ ℝ | y ≥ 2}

Then, in order to graph f(x) - 2, we just need to translate the graph 2 units down. To find the new points, we need to decrease all y-coordinates by 2:

(-2, 2), (-1, -1), (0, -2), (1, -1), (2, 2)

Domain: {x ∈ ℝ}

Range: {y ∈ ℝ | y ≥ -2}

4 0
1 year ago
Don’t understand!! please help!! and show work!
goldenfox [79]

To find the correct answer, you have to simplify the equation.

Multiply -1/2 by everything in the parenthesis.

3/4x - 3x - 1/2 - 3x. Combine like terms.

-21/4x - 1/2. Turn -21/4x into a mixed number.

-5 1/4x - 1/2.

Your answer is D

3 0
3 years ago
F20 in-1<br> 30 in.<br> 13 in.<br> 13 in.
scoray [572]

Answer:

13

Step-by-step explanation:

7 0
3 years ago
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