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3 years ago

8

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1 answer:

siniylev [52]3 years ago

8 0

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Use the binomial theory to expand and simplify (x-3y)^5

Illusion [34]

X^5-15x^4y+90x^3y^2-270x^2y^3+405xy^4-243y^5

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3 years ago

A patient requires an IV of D5W, a 5% solution of dextrose (sugar) in water. To the nearest milliliter, how much D20W, a 20% sol

solmaris [256]

Answer:

$A=300ml$

Step-by-step explanation:

From the question we are told that

5% solution of dextrose sugar in water

20% solution of dextrose in

100 milliliters of distilled water water

Generally in mathematically solving we call A the amount of D20W added

Since 20% of dextrose is needed

$20 \%*100=20milliter$

Total quantity after addition (100+x)

for DW5% total solution is

$5\% (100+A)= \frac{5}{100}(100+A)$

$5\% (100+A) =5+0.05A$

Mathematically

$5+0.05A =20$

$5+0.05A =20-5$

$A=\frac{15}{0.05}$

$A=300ml$

Therefore the required quantity $A=300ml$

7 0

3 years ago

Simplify \sqrt{0.81}

olchik [2.2K]

Answer:

Square root of .81 = .9

7 0

4 years ago

Describe the pattern for 3000,300,30,3

alina1380 [7]

It is being divided by 10.

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4 years ago

Read 2 more answers

Ms. Salgado needs to have her car repaired but does not want to spend more than $375 for the repairs. The mechanic says that the

elixir [45]

Answer:

The mechanic will need to finish in 4 hours.

Step-by-step explanation:

100+40=140

40+40=80

40+40=80

40

140 +80 + 80+ 40= 340

8 0

3 years ago