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TEA [102]
3 years ago
10

4. A rectangle has a width of 2 cm and a perimeter of 25 cm. Find the length and the area.

Mathematics
1 answer:
Sav [38]3 years ago
5 0

Answer:

l = 10.5 cm and A = 21 cm2

Step-by-step explanation:

Area is w*l

Perimeter is 2(w+l)

Replacing the information known in the problem you can get the length with the perimeter

P = 2(w+l)

25 = 2(2+l)

12.5 = 2 + l

10.5 cm = l

with the length now you can find the area

A = w*l

A = 2*10.5

A = 21 cm2

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Answer:

(B) The inequality that represents this relationship is 3x  < x^2 +15

Step-by-step explanation:

Let us assume the given number = x

⇒ 3 times the given number = 3 (x)  = 3x

Square of the given number = (x)^2  = x^2

Now, According to the question:

The difference of (3 x) and 15 is no less than x^2

⇒ 3x - 15 < x^2\\ \implies 3x  < x^2 +15

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Montano1993 [528]

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3 years ago
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Answer:

easy peasy,

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all in this case would be,

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8 0
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steps:
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Answer:

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