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3 years ago

ALGEBRA! NEED HELP!

2 answers:

7 0

Since each edge's length is x, each face's are would be ${ x }^{ 2 }$
And cubes have 6 faces. multiply 6 by ${ x }^{ 2 }$ , the formula is : $6{ x }^{ 2 }$

Amiraneli [1.4K]3 years ago

6 0

Surface area of a cube
cube=6 squares
square=2 equal sides
area of square=side^2
surface area of cube=6(area of square)=6side^2
side=x
SA=6x^2

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Answer:

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A right rectangular prism is packed with cubes of side length 1 over 2 inches. If the prism is packed with 5 cubes along the len

Dmitry [639]

Answer:

<em>Answer: C.Fraction 11 and 1 over 4 cubic inches</em>

Step-by-step explanation:

The volume of a rectangular prism of length L, width W, and height H is given by:

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2 years ago

A bag contains 13 pieces of candy. In how many ways can five pieces be selected?

Whitepunk [10]

Five pieces can be selected in 1287 ways

Step-by-step explanation:

When the selection has to be made without considering the order of selection, combinations are used.

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$C(n,r) = \frac{n!}{r!(n-r)!}$

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Putting the values in the formula

$C(13,5) = \frac{13!}{5!(13-5)!}\\=\frac{13!}{5!8!}\\=1287\ ways$

Five pieces can be selected in 1287 ways

Keywords: Combinations, selection

Learn more about combinations at:

#LearnwithBrainly

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Question 1:

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V125BC [204]

Answer:

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2 years ago