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Ulleksa [173]
3 years ago
9

Find the difference 8x − (12x2 + 5x) =

Mathematics
2 answers:
asambeis [7]3 years ago
8 0
If you mean 8x-(12x^2+5x) then the answer would be -12x^2+3x
ohaa [14]3 years ago
3 0

Answer:

Difference is -3x ( 4x - 1) .

Step-by-step explanation:

Given  : 8x − (12x² + 5x) .

To find : find the difference.

Solution : We have given

8x − (12x² + 5x) .

On removing pantheists .

8x − 12x² - 5x .

Combine like terms .

− 12x² - 5x + 8x .

− 12x² + 3x  .

On taking -x common from both terms .

-3x ( 4x - 1) .

Therefore, difference is -3x ( 4x - 1) .

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How many milliequivalents of sodium chloride are contained with 3 L of normal saline?
AVprozaik [17]

Answer:

466mEq

Step-by-step explanation:

First, we need to know the concentration of NaCl in a normal saline solution, this is by definition 0.9%, meaning we have 0.9g of NaCl per 100ml of solution, we want to know how much NaCl we have in 3L (3000ml):

3000ml*\frac{0.9g}{100ml}=27g=27000mg

So, we have 27000mg in 3L of normal saline solution.

Now, acording to our milliequivalent (mEq) equation (mEq=\frac{mg}{pE}) where pE is de molecular mass of NaCl divided by their charges, in this case 1:

pE= \frac{23+35}{1}=\frac{58}{1} = 58

Finally we substitute in the mEq formula:

mEq=\frac{mg}{pE}=\frac{27000}{58}=466mEq

I hope you find this information useful! Good luck!

4 0
3 years ago
16.11 ÷ 99<br> 19.6 ÷ 20 <br> 0.9 ÷ 11<br> 50.8 ÷ 45<br> 0.1414 ÷ 2 <br> 0.213 ÷ 31
ANEK [815]
BEFORE YOU USE THE ANSWERS! I USED CALCULATOR AND IT TOLD ME THIS SO IM NOT SO SURE IF IM CORRECT!!
1: 0.16272727272
2: 0.98
3: 0.08181818181
4: 1.12888888889
5: 0.0707
6: 0.00687096774
4 0
3 years ago
The perimeter of a triangle is 19z-7. One side is 5z-9 and one side is 8z+3. What is the remaining side ?
insens350 [35]
19z-7 - ( 5z-9 + <span>8z+3)
= 19z - 7 - (13z - 6)
= 19z - 7 - 13z + 6
= 6z - 1

answer
remaining side = </span> 6z - 1
3 0
3 years ago
Write 4270000 in scientific notation​
notka56 [123]
4.27x10*6
i cant get it to come up properly but its to the power of 6
7 0
3 years ago
What are the parallel sides of a trapezoid​
saul85 [17]

Answer:

Parallel means that the lines will never cross. If we look at a  traditional trapezoid, the top side and the bottom side are straight lines that will never cross one another. The left and right sides are slanted towards one another, to they are not parallel.

Hope this helped. : )

3 0
3 years ago
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