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Oksanka [162]
2 years ago
6

The sides of a rectangle are in the ratio 5 : 4. If the perimeter of the rectangle is 360 cm , find its area

Mathematics
1 answer:
djverab [1.8K]2 years ago
4 0

Answer:

Step-by-step explanation:

let, the length is z

thus the ratio will be 5z : 4z

perimeter = 2 (a + b)

360 = 2 ( 5z + 4z )

180 = 9z

z = 20 cm

length = 100 cm and width = 80cm

area = length * width

area = 100*80

area = 8000cm²

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Binomial (x - 6) and trinomial (-2x2 + x + 9) are the factors of which of the
djyliett [7]

Answer:

Option (3)

Step-by-step explanation:

If binomial (x - 6) and trinomial (-2x² + x + 9) are the factors of a polynomial then their multiplication will be equal to the polynomial.

(x - 6)(-2x² + x + 9) = x(-2x² + x + 9) - 6(-2x² + x + 9)

                              = -2x³ + x² + 9x + 12x² - 6x - 54

                              = -2x³ + 13x² + 3x - 54

Therefore, Option (3) will be the correct option.

8 0
3 years ago
10 POINTS!!!!!!!!!!!!
mote1985 [20]
Bigger to smaller I think...

take the smaller length divide by the larger length
1.45/5.8 = 0.25
8 0
3 years ago
Read 2 more answers
NEED HELP WITH THIS ASAP!!
Len [333]
It would be the third one
8 0
3 years ago
What are the solutions to the equation x2 - 8x = 10
mojhsa [17]

Answer:

x = 4 ±√26

Step-by-step explanation:

Please write this as x^2 - 8x = 10, or x^2 - 8x - 10 = 0.  " ^ " indicates exponentiation.

Let's complete the square:

x^2 - 8 x can be rewritten as

x^2 - 8x + 16 - 16, and so

x^2 - 8x = 10 becomes x^2 - 8x + 16 - 16 - 10 = 0, or

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Taking the square root of both sides, we get:

x - 4 = ±√26, or

x = 4 ±√26

5 0
3 years ago
How do I solve for h?
inessss [21]

Answer:

h=22.5167 x 10^0

Step-by-step explanation:

7 0
4 years ago
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