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valentinak56 [21]
3 years ago
15

The inequality represents the spine thickness, in centimeters, of various books on a

Mathematics
1 answer:
Shkiper50 [21]3 years ago
3 0

Answer:

7/2

Step-by-step explanation:

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The sides of a triangle are 1, x, and x2. what are possible values of x?
Whitepunk [10]
The sides of the triangle are given as 1, x, and x².

The principle of triangle inequality requires that the sum of the lengths of any two sides should be equal to, or greater than the third side.

Consider 3 cases
Case (a):  x < 1,
      Then in decreasing size, the lengths are 1, x, and x².
      We require that x² + x ≥ 1
      Solve x² + x - 1 = 
      x = 0.5[-1 +/- √(1+4)] = 0.618 or -1.618.
      Reject the negative length.
     Therefore, the lengths are 0.382, 0.618 and 1.

Case (b): x = 1
   This creates an equilateral triangle with equal sides
    The sides are 1, 1 and 1.

Case (c): x>1
  In increasing order, the lengths are 1, x, and x².
  We require that x + 1 ≥ x²
  Solve x² - x - 1 = 0
  x = 0.5[1 +/- √(1+4)] = 1.6118 or -0.618
  Reject the negative answr.
 The lengths are 1, 1.618 and 2.618.

Answer:
The possible lengths of the sides are
(a) 0.382, 0.618 and 1
(b) 1, 1 and 1.
(c) 2.618, 1.618 and 1.

7 0
3 years ago
Which of the following is the best estimate of 31% of 15?<br> 7.5<br> 3<br> 5<br> 4
Alex777 [14]
Th answer is 5 because 31% of 15 is 4.65
3 0
2 years ago
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Expand the expression using the distributive property: 6(4x + 5y + 2)
Oksanka [162]

Answer:

24 x + 30 y + 12

Step-by-step explanation:

this is simplified

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Please help I’ll give brainliest
Natali [406]

Answer:

3675

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP ME!!!!!!
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Answer:

50.24

Step-by-step explanation:

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3 years ago
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