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3 years ago

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A gold bar is in shape of a triangular prism,the height is 4,the volume is 216cm³, the lateral area is 288cm and the surface are

a is 312cm but if the bar is melted and all the molten gold is used to form a solid cube,what is the length of the side of the cube

1 answer:

Novosadov [1.4K]3 years ago

3 0

if you add 288cm and multiply by 216 then you shall get 433 and so if you

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Your field experience instructor wants to line up 8 cars for transportation. There are 27 cars available. How many different gro

ValentinkaMS [17]

Answer:

3

Step-by-step explanation:

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3 years ago

Evaluate C_n.xP^xQn-x For the given n=7, x=2, p=1/2

r-ruslan [8.4K]

Answer:

The value of given expression is $\frac{21}{128}$ .

Step-by-step explanation:

Given information: n=7, x=2, p=1/2

$q=1-p=1-\frac{1}{2}=\frac{1}{2}$

The given expression is

$C(n,x)p^xq^{n-x}$

It can be written as

$^nC_xp^xq^{n-x}$

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.

$^7C_2(\frac{1}{2})^2(\frac{1}{2})^{7-2}$

$\frac{7!}{2!(7-2)!}(\frac{1}{2})^2(\frac{1}{2})^{5}$

$\frac{7!}{2!5!}(\frac{1}{2})^{2+5}$

$\frac{7\times 6\times 5!}{2\times 5!}(\frac{1}{2})^{2+5}$

$21(\frac{1}{2})^{7}$

$\frac{21}{128}$

Therefore the value of given expression is $\frac{21}{128}$ .

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3 years ago

Which expression is equivalent to (5x^3)(2x)^3

Taya2010 [7]

Hello:
(5x^3)(2x)^3 = (5x^3)(2)^3(x)^3 = <span>(5x^3)8x^3=40x^6 ... (answer C)</span>

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3 years ago

Read 2 more answers

I don’t know how to do this. can someone please help me :)

Kaylis [27]

The surface area of a cylinder is the sum of the area of the two ends and the lateral area.
.. surface area = 2*(end area) +(lateral area)
.. = 2*(π*r^2) +(2π*r*h)
.. = 2π*r*(r +h)
.. = 2*3.14*(8 in)*(8 in +8 in)
.. = 3.14*256 in^2
.. ≈ 803.8 in^2

The 3rd selection is appropriate.

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3 years ago

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sweet-ann [11.9K]

500(1+0.06/12)^60=???????

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3 years ago