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Arte-miy333 [17]
3 years ago
8

When you roll a die what’s the probability of you rolling a multiple of 3?

Mathematics
2 answers:
Oksanka [162]3 years ago
5 0
The probability could be 1/3 of you rolling a multiple of 3
Annette [7]3 years ago
3 0
I'm pretty sure it's 1 out of 6 because there is six places on a die and 3 is only one of them
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2. Abby found the axis of symmetry, x-coordinate, the vertex, and y-intercept
krek1111 [17]

Using quadratic function concepts, it is found that Abby made a mistake on the coordinates of the vertex, which are (-4,1).

----------------------

  • A quadratic function is defined by:

y(x) = ax^2 + bx + c

  • The y-intercept is given by point: (0, y(0))
  • The vertex is given by: (-\frac{b}{2a}, y(-\frac{b}{2a})).
  • The axis of symmetry is: x = -\frac{b}{2a}

----------------------

The function given is:

f(x) = -x^2 - 8x - 15

  • Which is a quadratic equation with: a = -1, b = -8, c = -15.
  • f(0) = -0^2 - 8(0) - 15 = -15, thus, the y-intercept is (0, -15).

x_v = -\frac{b}{2a} = -\frac{(-8)}{2(-1)} = \frac{8}{-2} = -4

  • Thus, the <u>x-coordinate of the vertex</u> is x = -4, which is the same as the <u>axis of symmetry</u>.

f(-4) = -(-4)^2 - 8(-4) - 15 = 1

  • The vertex is given by: (-4,1).

A similar problem is given at brainly.com/question/14680175

8 0
3 years ago
Which polygon appears to be regular?
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ANEK [815]
Factor: 24y-40
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Simplifying: 24y-40
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7 0
3 years ago
5a + 7, for a = 20 please help me
fenix001 [56]
5 * 20 +7= 67..................
3 0
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Given any two numbers which is greater the least common multiple of the numbers or the greatest common factors of the numbers
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