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SVEN [57.7K]
3 years ago
14

Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

Mathematics
1 answer:
Stells [14]3 years ago
7 0

Answer:

5x^{2} -18x-8

Step-by-step explanation:

The formula for area of a rectange is lw, where l is length and w is width.  Since x-4 and 5x+2 are the sides, we can multiply them together to give us the area.  We do (x-4)(5x+2).  We use the FOIL method (First Outside Inside Last) and get 5x^2-18x-8.

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What is the surface area of this design? 5 in 5 in 6.4 in 5 in 9 in
xeze [42]

ANSWER

197 {in}^{2}

EXPLANATION

The area of the two tra-pezoidal faces

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The area of the 5 by 6.4 rectangular face

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6 0
3 years ago
Triangle ABC is dilated by a scale factor of 1.5 to form Triangle DEF. Are Triangles ABC and DEF congruent? Why or why not?
Triss [41]

Answer:

Yes, they will be.

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Congruent means when they are the same shape and same size.

If triangle ABC is dilated to <u><em>form</em></u> triangle DEF, that means that they will have the same shape and the same size.

So yes Triangles ABC and DEF will be congruent to one another because they will be the same shape, and they will have the same size as well.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

6 0
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A shopper paid $432 for an item marked $400. What was the percent of the sales tax
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Answer:

108

Step-by-step explanation:


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