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Assoli18 [71]
3 years ago
11

The surface area of a cube is 600 cm2. What is the area of one face of this cube?

Mathematics
2 answers:
____ [38]3 years ago
7 0
The surface area of the cube equals 6 times area of one face ( B - base ).
A ( cube ) = 6 * B
B = 600 cm² : 6
B = 100 cm²
The area of one face of this cube is 100 cm².
salantis [7]3 years ago
7 0
S.A. of a cube =6x^2; 6x^2=600; x=10; area of one face=10 * 10= 100cm
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Step-by-step explanation:

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Steps/Reasons/Explanation:

Question: What is the given amount converted to the given units 144 ft; inches?

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JulijaS [17]

Answer:

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Step-by-step explanation:

Given

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Required

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To do this, we make use of the following notations

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So:

\frac{dA}{dt} = kA

Where k represents the constant of proportionality

\frac{dA}{dt} = kA

Multiply both sides by dt/A

\frac{dA}{dt} * \frac{dt}{A} = kA * \frac{dt}{A}

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Integrate both sides

\int\ {\frac{dA}{A}  = \int\ {k\ dt}

ln\ A = kt + lnC

Make A, the subject

A = Ce^{kt}

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So, we have:

A = Ce^{kt}

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1000000 = Ce^{0}

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Substitute C =1000000 in A = Ce^{kt}

A = 1000000e^{kt}

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Take natural logarithm (ln) of both sides

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Solve for k

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k = \frac{-0.693}{6}

k = -0.1155

Recall that:

\frac{dA}{dt} = kA

Where

\frac{dA}{dt} = Rate

So, when

A = 600000

The rate is:

\frac{dA}{dt} = -0.1155 * 600000

\frac{dA}{dt} = -69300

<em>Hence, the amount of oil was decreasing at 69300 barrels, yearly</em>

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