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Sonja [21]
3 years ago
7

The rubbing alcohol in hand sanitizer has a half-life of 5 seconds. If there are 36 ounces initially,

Mathematics
1 answer:
vredina [299]3 years ago
4 0

Answer:

about 30 seconds

Step-by-step explanation:

Alcohol sanitizer is good until the alcohol evaporates, about 30 seconds. It is a cleaner, that kills the pathogens already on your hands. If you recontaminate your hands, you need to reapply.

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When the polynomial is written in standard form, what are the values of the leading coefficeient and the constant? 5x + 2 - 3x2
Elina [12.6K]

Answer:

The leading coefficient is -3

The constant is 2

Step-by-step explanation:

The standard form of a polynomial is the descending order, that means that it must be written according from its higher power, down straight to the coefficient with no variable.

Hence, the leading coefficient is the one that is next to the highest exponent of the polynomial, in this case: =3x2.

The second term is 5x

And the last is 2. the constant

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3 years ago
15d^3+30d^2+30d/3d3 what is the answer if you divide the following
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When you separate them
\frac{15d^{3} }{ {3d}^{3} }  +  \frac{30d^{2} }{ {3d}^{3} }  +  \frac{30d }{ {3d}^{3} }   = x
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5 +  \frac{10}{d}  +  \frac{10}{ {d}^{2} }  = x
Remove the denominators:
5 + 10 {d}^{ - 1}  + 10 {d}^{ - 2}  = x
Find GCF (Greatest Common Factor):
5(1 + 2 {d}^{ - 1}  + 2 {d}^{ - 2} ) = x
5 0
3 years ago
Henry drives at a speed of 80 miles per hour. <br> How long will it take to drive 400 miles?
mart [117]

Answer:

5hrs

Step-by-step explanation:

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2 years ago
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KonstantinChe [14]

Answer:

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Step-by-step explanation:

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3 years ago
A cylindrical tank lying on its side is filled with liquid weighing 50lb/ft^3. Find the work required to pump all the liquid to
nikklg [1K]
<span>You can use the fact that the work done is equivalent to finding the center of mass of the water in the tank(which is at the center of the cylindrical cross section, which is 3 ft below the level to which the liquid is pumped. Call this distance h. 
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4 0
3 years ago
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