A rectangular prism is 4 metters long, 5 meters wide, and has a height of 7 meters, What is the surface area?
1 answer:
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The dimensions of the rectangle are: length= 18 in and width =1 in.
<h3>Quadrilaterals</h3>There are different types of quadrilaterals, for example, square, rectangle, rhombus, trapezoid, and parallelogram. Each type is defined accordingly to its length of sides and angles. For example, in a rectangle, the opposite sides are equal and parallel and their interior angles are equal to 90°.
The area of a rectangle can be found for the formula : l*w, where b = length and w =width. The question gives that the area is 18 in².
For this question, the length exceeds its width by 17 inches - l=w+17. Thus, from the value of area given, you can find the values of the length and width of the rectangle.
A=l*w
18=(w+17)*w
18=w²+17w
w²+17w-18=0
Next step will be solve the previous equation ( W²+17W-18=0)
Therefore,
For dimensions, only positive numbers must be used. Then, the width is equal to 1 inch.
As, the area (l*w) is 18 in², you have.
18=l*w
18=l*1
l=18 in
Read more about the area of rectangle here:
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Answer:
Step-by-step explanation:
The first thing that you have to do is take the roots that you're given and write binomial products.
Remember that a root is the value of "x" in a binomial expression, so the binomial expression itself will have the opposite sign of the root.
The next thing you have to do is multiply the roots together. A good way to do this is the "box method."
(See attachment below for the multiplication of and
. )
Next, multiply your new trinomial by your remaining binomial. (See additional attachment below for the multiplication of and
)
The resulting polynomial is .
