MATHEMATICS HIGH SCHOOL

Find the surface area and volume of a cube with sides of 5.5 cm each.

Answers

Answer 1
Answer:

Answer:

V= 166.375cm^3 and As = 181.5cm^2.

Step-by-step explanation:

First, let's calculate the volume. The volume of a cube is V= s^3 where s is the side. Then,

V = (5.5cm)^3 = 166.375cm^3

Now, the surface area will be the sum of the areas of each face. Each face of the cube is a square and the area of a square is A=s^2, also we know that the cube has 6 faces, then the surface area of the cube will be

As = 6*s^2, so

As = 6*(5.5cm)^2

As = 6*30.25cm^2

As = 181.5cm^2.
Answer 2
Answer: The equation to find the surface area of a cube is: 2*base+lateral area. The base of a cube is just the area of the square. So you would multiply 5.5*5.5. That would equal 30.25
The equation to find the lateral area is: perimeter*height. So you would add 5.5 four times since its a square. It would equal 22. Then you would multiply it by the height of which is also 5.5. 5.5*22=121.

Now that you have all the information just plug it back in the equation.(side note, because cubes are prisms you have two bases which is why you multiply them by two.) 2*30.25+121=181.5

your awnser is 185.5cm squared

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How can I do this exercice (n+1)!/(n+2)! ?

Answers

(n+1)! is equal to (n+1)*n*(n-1)*(n-2)...*3*2*1.  Basically, it multiplies together every positive integer that is at most n+1.  This is the definition of the !, or the factorial function.

(n+2)! is equal to (n+2)*(n+1)*n*(n-1)*(n-2)...*3*2*1, using the same definition.  This thus is equal to (n+1)!*(n+2), so we have:

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Answers

Answer:

its C

Step-by-step explanation:
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What is the simplified expression for the expression below?-1(2x + 3) - 2(x - 1)

() 4x + 1

() 4x2

() 4x + 2

() 4% = 1

Answers

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.............

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Help help help help math

Answers

Radius is half the diameter.

The diameter is shown as 16, so the radius would be 16/2 = 8 in.

Area = 3 x 8^2

Area = 3 x 64

Area = 192 square inches

Answer:

A = 192

Step-by-step explanation:

r = 16/2 = 8

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A victim of phishing would most likely be contacted in which of these ways. A. In person b. By computer c. By telephone. D by fax.... I think its a but not sure

Answers

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or emails from people claming to be a nigerian prince recently having come into posession of a large fortune...



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Write a recursive and explicit rule for each geometric sequence, and then find the next 3 terms.1.) 2, 8, 32


2.) 1004, 512, 256

Answers

Hello,

1)
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2)
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....
a_(n+1)=a_(n)*0.5=a_(0)*0.5^(n+1)
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