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loris [4]
3 years ago
5

Which expression has a simplified expression of 5x - 12?

Mathematics
1 answer:
loris [4]3 years ago
5 0

Answer:

3(4x-4)-7x

Step-by-step explanation:

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The perimeter of the rectangle is 80 cm. The area of the rectangle is acm2 . (i) show that x 2 40x + a = 0.​
erica [24]

Answer:

Proved

Step-by-step explanation:

Given

p = 80 ---- perimeter

a \to area

Required

x^2 + 40x + a = 0

The perimeter is calculated as:

p = 2(x + y)

Where

x,y \to the rectangle dimension

So, we have:

2(x + y) = 80

Divide by 2

x + y = 40

Make y the subject

y = 40 - x

The area of the rectangle is:

a = xy

a = x * (40 -x)

a = 40x -x^2

Equate to 0:

x^2 - 40x + a = 0

4 0
3 years ago
GRAPH THE SOLUTION TO THE FOLLOWING SYSTEM OF INEQUALITIES: y>5x+3 AND y<=-2x+7
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Answer:

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Step-by-step explanation:

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enot [183]
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4 0
2 years ago
Is Statistics mathematics or science? Defend your answer.
Vladimir79 [104]

Answer:

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il63 [147K]

Answer:

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Step-by-step explanation:

Sorry if its wrong

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