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Paha777 [63]
3 years ago
14

You go the grocery and purchase 13 boxes of chocolates. You also buy a game that costs $54.27. When you check out, the total cos

t is $98.34. How much does one box of chocolates cost?
Mathematics
1 answer:
Nikitich [7]3 years ago
6 0

98.34-54.27= 14.07

14.07÷13

Answer=3.39


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The circumference of a circle is 11 pi ft. find its diameter, in feet​
nexus9112 [7]

Answer:

11 feet

Step-by-step explanation:

Use the circumference formula, C = \pid

Plug in 11\pi as C, and solve for d:

C = \pid

11\pi = \pid

11 = d

So, the diameter is 11 feet

7 0
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Find the vertex of the parabola<br> y= x^2-2x-1<br> vertex (?,?)
SpyIntel [72]
y=ax^2+bx+c\\\\vertex:(x_v;\ y_v)\\\\x_v=\frac{-b}{2a}\ and\ y_v=f(x_v)


y=x^2-2x-1\\\\a=1;\ b=-2;\ c=-1\\\\x_v=\frac{-(-2)}{2\cdot1}=\frac{2}{2}=1\\\\y_v=1^2-2\cdot1-1=1-2-1=-2\\\\Answer:(1;-2)
5 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=2x%28x%20-%202%29%5E%7B2%7D%20%20%2B%203x%28x%20%2B%203%29%5E%7B2%7D%20%20-%20x%5E%7B2%7D%20%2
Ratling [72]

= x·[2(x²- 4x + 4) + 3(x² + 6x + 9) - x² + 5x]

= x(2x² - 8x + 8 + 3x² + 18x + 27 - x² + 5x)

= x(4x² + 15x + 35)

5 0
3 years ago
15, 16, 20, and 22! PLEASE HELP
Vikentia [17]
The answer for number 16 is 20
7 0
3 years ago
Read 2 more answers
1
Marianna [84]

Answer:

  B. {16, 19, 20}

Step-by-step explanation:

The <em>triangle inequality</em> requires for any sides a, b, c you must have ...

  a + b > c

  b + c > a

  c + a > b

The net result of those requirements are ...

  • the sum of the two shortest sides must be greater than the longest side
  • the length of the third side lies between the difference and sum of the other two sides

__

If we look at the offered side length choices, we see ...

  A: 8+11 = 19 . . . not > 19; not a triangle

  B: 16+19 = 35 > 20; could be a triangle

  C: 3+4 = 7 . . . not > 8; not a triangle

  D: 5+5 = 10 . . . not > 11; not a triangle

The side lengths {16, 19, 20} could represent the sides of a triangle.

_____

<em>Additional comment</em>

The version of triangle inequality shown above ensures that a triangle will have non-zero area.

The alternative version of the triangle inequality uses ≥ instead of >. Triangles where a+b=c will look like a line segment--they will have zero area. Many authors disallow this case. (If it were allowed, then {8, 11, 19} would also be a "triangle.")

4 0
2 years ago
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