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4 years ago

What happens to the surface area of a rectangular prisim when each of the dimensions is doubled?

Mathematics

2 answers:

vaieri [72.5K]4 years ago

8 0

It would Quadruple, so B

marta [7]4 years ago

6 0

Answer=C

The formula for the volume of a rectangular prism is

V=l*w*h where l=length w=width and h=height

So lets double each of the dimensions and see what it does to the volume

V=2l*2w*2h
V=8*l*w*h

So when you double each of the dimensions, the volume becomes 8 times greater, which isn't an option. Did you correctly write the question?

For example if the dimensions for l,w & h are 2

V=2*2*2=8

but if they are doubled

V=4*4*4=64

64/8=8

So it's 8 times greater...

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The present value of R8052.55 received in 5 years at 9% interest is

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Answer:

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4 years ago

mrs.lia has 12 pounds of modeling clay.she divides the clay into 1/2 pound blocks.if mrs.lia sers aside 6 of the blocks and give

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She gives away 18 half pound blocks

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4 years ago

Read 2 more answers

The system of equations is given:

Nutka1998 [239]

Answer:

x=-1/85; y=-283/85; z=2/17

Step-by-step explanation:

Using an algebraic method like elimination or substitution would take a lot of steps which could lead to mistake the calculations. In this case, I decided to use the Gaussian elimination. We can express the system in matrix form as follows:

$\left[\begin{array}{ccc}2&-4&6\\9&-3&1\\5&0&9\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}14\\10\\1\end{array}\right]$

To begin the calculations, we write the system in augmented matrix form and use the Gaussian elimination:

$\left[\begin{array}{ccccc}2&-4&6&|&14\\9&-3&1&|&10\\5&0&9&|&1\end{array}\right]$

By applying the Gaussian elimination, the final matrix is the following:

$\left[\begin{array}{ccccc}1&0&0&|&-1/85\\0&1&0&|&-283/85\\0&0&1&|&2/17\end{array}\right]$

In order to verify the results, it´s enough to substitute the calculated values in the original equations to see if the equalities are correct. Here you can see the verification for all of the equations:

$2(-1/85)-4(-283/85)+6(2/17)=14\\9(-1/85)-3(-283/85)+1(2/17)=10\\5(-1/85)+9(2/17)=1$

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3 years ago

600 students were going on a field trip.

laiz [17]

Answer:

6,000 total items

Step-by-step explanation:

3*600=1800 (total juice)

2*600=1200 (total fruit)

2*600=1200 (total burritos)

2*600=1200 (total doritos)

1*600=600 (total milk)

1800+1200+1200+1200+600=6000

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3 years ago

2020

worty [1.4K]

E-english class
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E=1/2s•M

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3 years ago