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SpyIntel [72]
3 years ago
10

Help plz will mark brainliest!

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0

Answer:

94 cm^2

Step-by-step explanation:

The surface area of a rectangular prism can be found using:

A=2(wl+hl+hw)

We know the width is 3, the height is 5, and the length is 4. We can substitute 3 in for w, 5 in for h, and 4 in for l.

A=2((3*4)+(5*4)+(5*3))

Multiply 3 and 4

A=2(12+(5*4)+(5*3))

Multiply 5 and 4

A=2(12+20+(5*3))

Multiply 5 and 3

A=2(12+20+15)

Add 12 and 20 and 15

A=2(47)

Multiply 2 and 47

A=94

So, the the surface area is 94 cm^2

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A student walked 100 meters north, then 100 meters west. how many more meters did the student walk compared to their total displ
seraphim [82]

Using Pythagorean theorem, the student walked 53.58 meters more compared to the total displacement from the starting point.

If a student walks 100 meters north, then 100 meters west, then the path he travels resembles the sides of a right triangle (see attached photo).

Using Pythagorean theorem, we can solve for the total displacement from the starting point to the end point.

c^2 = a^2 + b^2

where c is the total displacement from the starting point to the end point

a is the distance he walks up north

b is the distance he walks to the west

c^2 = 100^2 + 100^2

c^2 = 10,000 + 10,000

c^2 = 20,000

c = 141.42 meters

Comparing the total distance the student walked and the total displacement from the starting point to the end point by subtraction.

100 meters + 100 meters - 141.42 meters = 53.58 meters

Learn more about Pythagorean Theorem here: brainly.com/question/343682

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