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Degger [83]
3 years ago
7

Which expression is equal to 632?

Mathematics
1 answer:
kkurt [141]3 years ago
3 0

Answer:

3. 2^{3} (3*5^{2}  + 2^{2} )

Step-by-step explanation:

I think your question missed key information, allow me to add in and hope it will fit the orginal one. Please have a look at the attached photo

My answer;

We use oder of operation to solve this question

We have BEDMAS, which means:

  • B - Brackets
  • E - Exponents
  • D - Division
  • M - Multiplication
  • A - Addition
  • S - Subtraction

In 4 answer, only answer is correct:

2^{3} (3*5^{2}  + 2^{2} )

= 2^{3} (3*25 +4)

= 2^{3} (79 + 4)

= 2^{3}*83

= 8*83

= 664

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Answer:

1250 m²

Step-by-step explanation:

Let x and y denote the sides of the rectangular research plot.

Thus, area is;

A = xy

Now, we are told that end of the plot already has an erected wall. This means we are left with 3 sides to work with.

Thus, if y is the erected wall, and we are using 100m wire for the remaining sides, it means;

2x + y = 100

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Since A = xy

We have; A = x(100 - 2x)

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At maximum area, dA/dx = 0.thus;

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x = 100/4

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Let's confirm if it is maximum from d²A/dx²

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Let's plug in 25 for x in the area equation;

A_max = 25(100 - 2(25))

A_max = 1250 m²

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Step-by-step explanation:

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