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Setler [38]
3 years ago
8

Exam: Final

Mathematics
2 answers:
rewona [7]3 years ago
6 0

Answer:

D)

6x - 4

Step-by-step explanation:

Perimeter of a rectangle = 2(length + width)

where,

Length = 2x - 3; width = x + 1

Thus,

p = 2(2x - 3 + x + 1)

Collect like terms in the bracket

p = 2(2x + x - 3 + 1)

p = 2(3x - 2)

Expand the bracket

p = 6x - 4

Elan Coil [88]3 years ago
4 0

Answer:

D. 6x-4

Step-by-step explanation:

Since the perimeter of rectangle is;

2 [length + width]

length = (2x - 3)

width = (x + 1)

2 [(2x - 3) + (x + 1)]

4x - 6 + 2x + 2

6x - 4

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amid [387]
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2x - y = 8 - Answer: y = -8 + 2x 

I hope that helped you! :) 
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I hope this helps you

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A scale drawing has a scale of 1/4in:12ft. Find the length on the drawing for each actual length. 15 ft.
leonid [27]
So the ratio is at ¼ : 12, namely the drawing has ¼ inch to an actual 12 feet.

so, what would it be for an actual 15 feet on the drawing then?

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6 0
3 years ago
Can someone turn 4,971 into a scientific notation
Illusion [34]

We need to divide 4,971 by 10 until its a number less then 10.

4,971 / 10 = 497.1

497.1 / 10 = 49.71

49.71 / 10 = 4.971

Now, 4.971 is less then 10, so, we can write this into scientific notation.

4.971 * 10^?

We need to know what power we add to 10 to get 4,971. We can solve for looking at the number of times we divided. As you can see above, we divided 3 times so that will be the power of 10.

4.971 * 10³

Best of Luck!

6 0
3 years ago
Read 2 more answers
Cut a 60 cm ribbon into such that one part is one third of the other half
oee [108]

Answer:

15cm and 45cm

Step-by-step explanation:

If one part is one third of the other, then the long one is three times as long as the short one.

If the short one has length x

x + 3x = 60cm

4x = 60cm

x = 15cm

So short one is 15cm and the long one is 3*15cm = 45cm

6 0
3 years ago
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