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2 years ago

If the dimensions of a rectangle with a perimeter of 12 cm are doubled, what will be

Mathematics

1 answer:

exis [7]2 years ago

3 0

Step-by-step explanation:

the perimeter is the sum of the 4 individual sides.

if the sides are doubled, so is the sum of them.

therefore, the new perimeter is then

12×2 = 24 cm

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3 years ago

What are the exact solutions of x^2 − 3x − 7 = 0?

bulgar [2K]

Given:

The given equation is $x^{2} -3x-7=0$

We need to determine the exact solutions of the equation.

Exact solution:

The exact solution of the equation can be determined by solving the equation using quadratic formula,

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From the equation the values are a = 1, b = -3 and c = -7

Thus, substituting these values in the equation, we get;

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3 years ago

4y−7+2y=3(y−1)−1 answer for y

sammy [17]

The answer to your question is y=1

3 0

3 years ago

Read 2 more answers

Please solve this question.

andre [41]

Answer:

x = - 2

y = 5

Step-by-step explanation:

Hi there !

2x + 9 = y

y = - 4x - 3

equality

2x + 9 = - 4x - 3

2x + 4x = - 9 - 3

6x = - 12

x = - 12 : 6

x = - 2

replace x = - 2

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Good luck !

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3 years ago

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Mazyrski [523]

Answer:

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Step-by-step explanation:

5 x 2=10 add the x to the end

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Hope this helps (:

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3 years ago

Read 2 more answers