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3 years ago

If anybody knows anything I beg you help PLS HELP

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

6 0

Answer:

7.809 g/cm^3

Step-by-step explanation:

Density is mass over volume so we need to find the mass and volume of the steel.

First we find the volume of the wood:

Vw = 9*6*6 = 324 cm^3

now we can find the mass of the wood, as mass = density * volume

mw = .68*324 = 220.32g

subtracting the mass of wood from total mass, we get the mass of steel

970-220.32 = 749.68g

now we can find the volume of the pyramid

Vs = 1/3 *6*6* (17-9) = 96 cm^3

Now we divide mass by volume to get density

749.68/96 = 7.809 g/cm^3

Confirming this with known data, density of steel is roughly between 7.75 and 8.05 g/cm^3 so we know we're correct.

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$\bf \qquad \textit{parabola vertex form}\\\\
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x=a(y-{{ k}})^2+{{ h}}
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4 years ago

A new roll of insulated electrical wire has 200 feet of wire. Mr.S needs pieces that are 6 1/4 feet long. How many full pieces o

lisov135 [29]

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3 years ago

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you deposit $1,200 in a bank account. Find the balance after 4 years in the account pays 3.5% annual interest compounded monthly

photoshop1234 [79]

Answer:

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Step-by-step explanation:

Given that you deposit $ 1,200 in a bank account, to find the balance after 4 years in the account pays 3.5% annual interest compounded monthly, the following calculation must be performed:

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3 years ago

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nignag [31]

Answer:

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Step-by-step explanation:

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notsponge [240]

Answer:

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Step-by-step explanation:

Subtract 47 and 32 from 180 to find the third angle of the triangle (it is 101).

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2 years ago