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3 years ago

O picatura de ulei cu volumul de 0,3 mm a format pe suprafata apei o pelicula cu aria de 300 cm Calculati grosimea peliculei

Mathematics

1 answer:

lesantik [10]3 years ago

8 0

What did you misspell something or are you foreign

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Which algebraic properties was applied to the expression a + (b + c) = (a + b) + c?

andrew11 [14]

Answer:

the Associative Property

Step-by-step explanation:

Notice that the ORDER doesn't change -- a, b, c on both sides. But the GROUPING changes.

Example:

3 + (4 + 5) = (3 + 4) + 5

3 + 9 = 7 + 5

12 = 12

Subtraction does NOT behave this way!

8 - (7 - 1) = 8 - 6 = 2

(8 - 7) - 1 = 1 - 1 = 0

It matters who you associate with! :-)

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3 years ago

While Edward was visiting his sister in Westminster, he bought a toothbrush that was marked down 80% from an original price of $

Andre45 [30]

Answer:

$1.78

Step-by-step explanation:

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3 years ago

Questlon 3 of 10

amm1812

Answer:

b)A cube with side lengths of 4 feet has a volume of 64cubic feet

Step-by-step explanation:

volume=length×width×height

=4×4×4

=64feet³

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3 years ago

A school puts on a play. The play costs $1,150 in expenses. The students charge $5.25 for tickets. There will be one performance

tiny-mole [99]

Answer:

The equation to find profit would be y=5.25x-1,150

I'm not sure of what exactly you are looking for, If you need something else let me know and I'll be happy to help!

Step-by-step explanation:

7 0

3 years ago

Consumer products are required by law to contain at least as much as the amount printed on the package. For example, a bag of po

Troyanec [42]

Answer:

The average bag weight must be used to achieve at least 99 percent of the bags having 10 or more ounces in the bag=9.802

Step-by-step explanation:

We are given that

Standard deviation, $\sigma=0.2$ ounces

We have to find the average bag weight must be used to achieve at least 99 percent of the bags having 10 or more ounces in the bag.

$P(x\geq 10)=0.99$

Assume the bag weight distribution is bell-shaped

Therefore,

$P(\frac{x-\mu}{\sigma}\geq 10)=0.99$

We know that

$z=\frac{x-\mu}{\sigma}$

Using the value of z

Now,

$\frac{10-\mu}{0.2}=0.99$

$10-\mu=0.99\times 0.2$

$\mu=10-0.99\times 0.2$

$\mu=9.802$

Hence, the average bag weight must be used to achieve at least 99 percent of the bags having 10 or more ounces in the bag=9.802

5 0

3 years ago