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RideAnS [48]
3 years ago
9

The perimeter of a triangle is 65 meters. The second side is 5 meters less than the first side The third side is 7

Mathematics
1 answer:
tangare [24]3 years ago
4 0

Answer:

The length of each side is 31.5m, 26.5m, 7m

Step-by-step explanation:

Let the length of the first side of the triangle be x meters.

Then, the second side is x-5 meters.

The third side is given as 7 meters.

The perimeter is 65 meters

This gives us the equation:

65 = x + x - 5 + 7

65 - 7 + 5 = x + x

63 = 2x

x =  \frac{63}{2}  = 31.5

The length of each side is 31.5m, 26.5m, 7m

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2 years ago
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ra1l [238]

Answer:

40.625%

Step-by-step explanation:

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We have to understand converting word equations to algebraic ones.

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7 0
3 years ago
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gayaneshka [121]

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3 years ago
What is the product of the polynomials shown below?
Sindrei [870]

Answer:

B. 14x^3+39x^2+18x+20

Step-by-step explanation:

Given polynomials are:

(7x^2+2x+4)(2x+5)\\For\ product\\(2x+5)(7x^2+2x+4)\\= 2x(7x^2+2x+4)+5(7x^2+2x+4)\\= 14x^3+4x^2+8x+35x^2+10x+20\\Combining\ alike\ terms\\= 14x^3+4x^2+35x^2+8x+10x+20\\=14x^3+39x^2+18x+20

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14x^3+39x^2+18x+20

Hence, Option B is correct ..

8 0
3 years ago
Read 2 more answers
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