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fredd [130]
3 years ago
11

(3x^3 + 2x^2 - 2) + (x^2 + 5x - 6)

Mathematics
1 answer:
Alecsey [184]3 years ago
8 0

Answer:

3x^3+3x^2+5x-8

Step-by-step explanation:

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Round 2.36 to the whole number
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The diagonal is a of a rectangular field is 169m. If the ratio of the length to the width is 12:5 find the dimensions
Aleks04 [339]

Based on the calculations, the dimensions of the rectangle are

  1. Length, L = 156 meters.
  2. Width, w = 65 meters.

<h3>What is a diagonal?</h3>

The diagonal of a rectangle can be defined as a line segment that connects any two (2) of its non-adjacent vertices together while dividing the rectangle into two (2) equal parts.

Mathematically, the length of diagonals of a rectangle can be calculated by using this formula:

d = √(l² + w²)

Where:

  • d is the diagonal of a rectangle.
  • l is the length of a rectangle.
  • w is the width of a rectangle.

Since the ratio of the length to the width is 12:5, we have:

Width, w = 5l/12

Substituting the given parameters into the formula, we have;

169 = √(l² + (5l/12)²)

169² = l² + (5l/12)²

169² = l² + (25l²/144)

Length, L = 156 meters.

For the width, we have:

Width, w = 5l/12

Width, w = 5(156)/12

Width, w = 65 meters.

Read more on rectangle here: brainly.com/question/25292087

#SPJ1

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2 years ago
8 identical pens cost £12 work out the cost of 10 of these pens
katen-ka-za [31]

Ok. So, if 8 pens cost £12. Then we would divide £12 by 8. Each pen costs £1.5.

So now we are going to multiply £1.5 and 10. £1.5*10=15.

The total of 10 pens is £15.

I hope this helps, if you need any additional help, just ask. I am here to help you as needed.

3 0
3 years ago
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