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3 years ago

Elena packed 48 cubes into this box.Each cube has edges that are 1 centimeter.How many layers of cubes did Elena make

1 answer:

4 0

Elena packed 48 cubes.
Each cube has an edge of 1 centimeter.
The number of layers that Elena can make depends on how each layer is arranged and depends on how many cubes are there in a layer.
Assume that each layer has only 1 cube, then there are 48 layers.

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Solve this clue: <br> My age is 10 more than one-tenth of one-tenth of 3,000

elena55 [62]

Ten percent of 3000 is 300 ten percent of that is 30 add ten and it's 40

7 0

4 years ago

Element X decays radioactively with a half life of 13 minutes. If there are 530 grams of Element X, how long, to the nearest ten

Leona [35]

Answer:

$t \approx 50.4\,min$

Step-by-step explanation:

The time constant of the element X is:

$\tau = \frac{13\,min}{\ln 2}$

$\tau = 18.755\,min$

The decay function has the following form:

$\frac{m}{m_{o}} = e^{-\frac{t}{\tau} }$

$t = -\tau \cdot \ln \frac{m}{m_{o}}$

$t = -(13\,min)\cdot \ln \left(\frac{11\,g}{530\,g} \right)$

$t \approx 50.4\,min$

6 0

3 years ago

What is 13x4=nx26 and tell me the answer

stira [4]

Answer:

There are a couple different solutions to your equation:

$x=0$

$x=\sqrt[22]{\frac{13}{n}}$

$x=-\sqrt[22]{\frac{13}{n}}$

$\:n\ne \:0$

8 0

2 years ago

How to do this in math

igomit [66]

Multiply both sides by 5

3 0

3 years ago

The height, h, of a falling object t seconds after it is dropped from a platform 300 feet above the ground is modeled by the fun

notka56 [123]

Average rate = [h(3) - h(0)]/(3 - 0)
h(3) = 300 - 16(3)^2 = 300 - 16(9) = 300 - 144 = 156
h(0) = 300 - 16(0)^2 = 300

average rate = (156 - 300)/3 = -144/3 = -48

Therefore, the object falls with an average rate of 48 ft/s during the first 3 seconds.

4 0

3 years ago