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quester [9]
3 years ago
7

An iceberg has a volume of 7660 cubic feet. what is the mass of the ice (in kg) composing the iceberg

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
7 0

Well to solve this problem, we need the density of ice. The density of ice is around 0.917 g / cm^3.

Now to find for the mass, simply multiply the volume with the density.

That is:

Mass = density * volume

 

However, let us convert first the volume into units of cm^3.

Volume = 7660 ft^3 = 2.1691 x 10^8 cm^3

 

Therefore the mass is:

mass = 0.917 g / cm^3 * 2.1691 x 10^8 cm^3

mass = 1.989 x 10^8 g

<span>mass = 1.989 x 10^5 kg</span>

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3 years ago
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Punctele O, A, B, C sunt coliniare în această ordine, iar segmentele OA, AB și BC au lungimile exprimate în cm, prin numere natu
julia-pushkina [17]

Răspuns:

a) OC = 18cm

b) MN = 6cm

Explicație pas cu pas:

Găsiți diagrama la întrebarea atașată.

a) Din diagramă se poate observa că OC = OA + AB + AC

OC = 2n + 2n + 2 + 2n + 4

OC = 6n + 6

Următorul este să obțineți valoarea lui n:

OM = OA + AM

Să obținem segmentul AM;

Deoarece M este segmentul mijlociu al AC, atunci;

AM = AC / 2

AM = AB + BC / 2

AM = 2n + 2 + 2n + 4/2

AM = 4n + 6/2

AM = 2n + 3

Din moment ce OM = OA + AM

OM = 2n + 2n + 3

OM = 4n + 3

Dat fiind OM = 11

11 = 4n + 3

4n = 11-3

4n = 8

n = 2

Următorul pas este să calculați OC;

OC = 6n + 6

OC = 6 (2) + 6

OC = 18

Prin urmare, lungimea segmentului OC este de 18 cm

b) Această întrebare ne cere să găsim segmentul de linie MN.

Din diagramă, MN = AM - AN

Deoarece AM = 2n + 3 din întrebarea 1;

AM = 2 (2) +3

AM = 4 + 3

AM = 7

Acum, să obținem AN:

Din diagramă, AN = ON-OA și ON = OB / 2

AN = OB / 2 - OA

AN = (2n + 2n + 2) / 2 - 2n

AN = 4n + 2/2 - 2n

AN = 2n + 1 - 2n

AN = 2n-2n + 1

AN = 1

De la MN = AM - AN

MN = 7 - 1

MN = 6cm

Prin urmare, distanța dintre N, mijlocul segmentului OB și punctul M este de 6cm

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4 years ago
There was a plate full of brownies. Tina ate 444 of the brownies. There were 161616 brownies left.
garik1379 [7]
Subtraction

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Answer:

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Step-by-step explanation:

Expression:

\frac{64.04}{4}

long division step

\begin{matrix}\space\space\space\space\emptyspace16.01\space\space\space\space\space\space\space\space\space\space\space\space\space\space\\ 4\overline{|\smallspace64.04}\space\space\space\space\space\space\space\end{matrix}

   4

   24

   24

     00

        0

        04

          4

           0

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3 years ago
Which graph represents -5x+4y &gt; -1
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Answer:

Were is the graph

Step-by-step explanation:

show me the graph

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3 years ago
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