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Usimov [2.4K]
2 years ago
14

Monu

Mathematics
2 answers:
aalyn [17]2 years ago
8 0
  • Length=L=8m
  • Base=B=4m
  • Height=h=5m

Now

\\ \sf\longmapsto Volume=V=LBH

\\ \sf\longmapsto V=8(4)(5)

\\ \sf\longmapsto V=32(5)

\\ \sf\longmapsto V=160m^3

Mama L [17]2 years ago
3 0

Step-by-step explanation:

<u>The volume of rectangular prism:</u>

  • V = lwh

<u>Given:</u>

  • l = 8 m, w = 4 m, h = 5 m

<u>The volume is:</u>

  • V = 8*4*5 = 160 m³

<u>Correct choices are:</u>

  • V = 32 × 5
  • V= 8 × 4 × 5
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Hi i am having trouble with this question can some one help me on it i heard this app really helps you understand question i mig
Evgen [1.6K]

Answer:

n = -1

Step-by-step explanation:

Guess your question is to find n

Given:

-6 + 3n = -9

-6 + 3n = -9

Add 6 to both sides

-6 + 6 + 3n = -9 + 6

3n = -3

Divide both sides by 3

n = -3 / 3

= -1

n = -1

Check:

-6 + 3n = -9

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6 0
3 years ago
the half life of c14 is 5730 years. Suppose that wood found at an archeological excavation site contains about 35% as much C14 a
Furkat [3]

Answer:

The wood was cut approximately 8679 years ago.

Step-by-step explanation:

At first we assume that examination occured in 2020. The decay of radioactive isotopes are represented by the following ordinary differential equation:

\frac{dm}{dt} = -\frac{m}{\tau} (Eq. 1)

Where:

\frac{dm}{dt} - First derivative of mass in time, measured in miligrams per year.

\tau - Time constant, measured in years.

m - Mass of the radioactive isotope, measured in miligrams.

Now we obtain the solution of this differential equation:

\int {\frac{dm}{m} } = -\frac{1}{\tau}\int dt

\ln m = -\frac{1}{\tau} + C

m(t) = m_{o}\cdot e^{-\frac{t}{\tau} } (Eq. 2)

Where:

m_{o} - Initial mass of isotope, measured in miligrams.

t - Time, measured in years.

And time is cleared within the equation:

t = -\tau \cdot \ln \left[\frac{m(t)}{m_{o}} \right]

Then, time constant can be found as a function of half-life:

\tau = \frac{t_{1/2}}{\ln 2} (Eq. 3)

If we know that t_{1/2} = 5730\,yr and \frac{m(t)}{m_{o}} = 0.35, then:

\tau = \frac{5730\,yr}{\ln 2}

\tau \approx 8266.643\,yr

t = -(8266.643\,yr)\cdot \ln 0.35

t \approx 8678.505\,yr

The wood was cut approximately 8679 years ago.

5 0
3 years ago
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xxMikexx [17]

Answer:

8

Step-by-step explanation:

5 0
3 years ago
Ijknjhyuyyyyyyyyyyy4e47899986756ftv
Brrunno [24]

Answer:

yes

Step-by-step explanation:

7 0
3 years ago
3 times what divided by 4 equals 24
MissTica
3*x/4=24
3*x= 24*4
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x=32
6 0
3 years ago
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