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2 years ago

A storage container at the arena is 3 metres wide, 6 metres long and 4 metres high.

Mathematics

2 answers:

OverLord2011 [107]2 years ago

7 0

17.36 boxes hope im right

saveliy_v [14]2 years ago

7 0

Answer:

576 boxes

Step-by-step explanation:

Given that a storage container at the arena is 3 metres wide, 6 metres long and 4 metres high.

Hence volume of the container $= 3x6x4 = 72m cube.$

Volume of boxes = $50x50x50 = 125000 cm cube= 0.125 m^3$

No of boxes that fit into storage container

= $\frac{72}{0.125} \\=576$

576 boxes can be fit inside the container.

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Element X decays radioactively with a half life of 12 minutes. If there are 200 grams of Element X, how long, to the nearest ten

Semenov [28]

Answer:

It would take 24 minutes for the element to decay to 50 grams

Step-by-step explanation:

The equation for the amount of the element present, after t minutes, is:

$Q(t) = Q(0)e^{-rt}$

In which Q(X) decays radioactively with a half life of 12 minutes.(0) is the initial amount and r is the rate it decreases.

Half life of 12 minutes

This means that $Q(12) = 0.5Q(0)$

$Q(t) = Q(0)e^{-rt}$

$0.5Q(0) = Q(0)e^{-12r}$

$e^{-12r} = 0.5$

$\ln{e^{-12r}} = \ln{0.5}$

$-12r = \ln{0.5}$

$12r = -\ln{0.5}$

$r = -\frac{\ln{0.5}}{12}$

$r = 0.05776$

If there are 200 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 50 grams?

This is t when Q(t) = 50. Q(0) = 200.

$Q(t) = Q(0)e^{-rt}$

$50 = 200e^{-0.05776t}$

$e^{-0.05776t} = 0.25$

$\ln{e^{-0.05776t}} = \ln{0.25}$

$-0.05776t = \ln{0.25}$

$0.05776t = -\ln{0.25}$

$t = -\frac{\ln{0.25}}{0.05776}$

$t = 24$

It would take 24 minutes for the element to decay to 50 grams

6 0

3 years ago

Lilbabyonme hahahahahahahahahahahahay

valina [46]

Answer: ghrhuydduyfgjrguh

Step-by-step explanation:

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5 0

3 years ago

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Which expression is equivalent to (8 a minus 3 b + 7) minus (2 a + b minus 4)? 6 a minus 2 b + 11 6 a minus 4 b + 3 6 a minus 2

bekas [8.4K]

This is how it turns out:

6 0

2 years ago

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What is a distributive property of 72 divided by 4

djverab [1.8K]

Answer:

$\frac{72}{4}=18$

Step-by-step explanation:

To find : What is a distributive property of 72 divided by 4 ?

Solution :

The distributive property of division is given by,

$\frac{a+b}{c}=\frac{a}{c}+\frac{b}{c}$

We have to divide 72 by 4,

So, Re-write 72 as 60+12.

Substitute,

$\frac{72}{4}=\frac{60+12}{4}$

$\frac{72}{4}=\frac{60}{4}+\frac{12}{4}$

$\frac{72}{4}=15+3$

$\frac{72}{4}=18$

Therefore, $\frac{72}{4}=18$

7 0

3 years ago

If the equation of a function is y=x2-5, what is the output when the input is -1? А) -6 B) -5 O -4 D) - 3

Tatiana [17]

Answer:

- 4

Step-by-step explanation:

If the equation of a function is y=x2-5, the output when the input is -1 is

y = (-1)² - 5

= - 4

Hope it will help :)

8 0

2 years ago