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nikdorinn [45]
3 years ago
9

If a couple has 3 children what is the probability that at least one is a girl

Mathematics
2 answers:
Dvinal [7]3 years ago
5 0

Answer: 1/3

Step-by-step explanation:

  1. How many children are there-3
  2. How many are the hoping to be a girl-1
  3. The denominator is 3 and the numerator is 1

Therefore the answer would be 1/3.

postnew [5]3 years ago
3 0

Answer:1:1

Step-by-step explanation:

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Given the following coordinates complete the reflection transformation.
Igoryamba

The <em>double</em> reflection generates the following three points: A''(x, y) = (1, - 1), B''(x, y) = (2, 2) and C''(x, y) = (5, 2).

<h3>How to generate a set of point by rigid transformations</h3>

In this problem we must apply two <em>rigid</em> transformations to find three points. The formula for reflection over an axis parallel to the y-axis is defined below:

P'(x, y) = (x', k) - [P(x, y) - (x', k)]     (1)

Where:

  • x' - x-coordinate of the point P(x, y).
  • P(x, y) - Original point
  • P'(x, y) - Resulting point

If we know that A(x, y) = (1, - 5), k = - 1 and k' =  1, then the resulting points are:

Point A

A'(x, y) = (1, - 1) - [(1, - 5) - (1, - 1)]

A'(x, y) = (1, - 1) - (0, - 4)

A'(x, y) = (1, 3)

A''(x, y) = (1, 1) - [(1, 3) - (1, 1)]

A''(x, y) = (1, 1) - (0, 2)

A''(x, y) = (1, - 1)

Point B

B'(x, y) = (2, - 1) - [(2, - 2) - (2, - 1)]

B'(x, y) = (2, - 1) - (0, - 1)

B'(x, y) = (2, 0)

B''(x, y) = (2, 1) - [(2, 0) - (2, 1)]

B''(x, y) = (2, 1) - (0, - 1)

B''(x, y) = (2, 2)

Point C

C'(x, y) = (5, - 1) - [(5, - 2) - (5, - 1)]

C'(x, y) = (5, - 1) - (0, - 1)

C'(x, y) = (5, 0)

C''(x, y) = (5, 1) - [(5, 0) - (5, 1)]

C''(x, y) = (5, 1) - (0, - 1)

C''(x, y) = (5, 2)

The <em>double</em> reflection generates the following three points: A''(x, y) = (1, - 1), B''(x, y) = (2, 2) and C''(x, y) = (5, 2).

To learn more on rigid transformations: brainly.com/question/1761538

#SPJ1

3 0
1 year ago
Determine the infinite limit. <br><br> lim (x + 6) / (x + 7)<br> xââ7â
scoray [572]

Answer:

\lim_{x \to \infty} \frac{x+6}{x+7} = 1

Step-by-step explanation:

You have to calculate the following limit:

\lim_{x \to \infty} \frac{x+6}{x+7}

To solve the previous limit, you can factor x from numerator and denominator of the function, and use the fact that c/∞ = 0 with c a constant.

\lim_{x \to \infty} \frac{x+6}{x+7}=  \lim_{x \to \infty}\frac{x(1+\frac{6}{x})}{x(1+\frac{7}{x})}=\lim_{x \to \infty}\frac{1+6/x}{1+7/x}=\frac{1+0}{1+0}=1

Hence, the limit is 1, L = 1

6 0
3 years ago
What other number is a part of this fact family?3,4
iogann1982 [59]
A fact family needs to have at least 3 numbers. The first two numbers are added to give the third number. A fact family is used to show the Commutative Property of Addition. So,
3 + 4 = 4 + 3 = 7
The third number is 7
5 0
3 years ago
Please help i don't understand what this means ahh
Minchanka [31]

Answer:

WHAT WENDOSDD

Step-by-step explanation:

7 0
3 years ago
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Find the x-intercept form the line represented by this equation. 5x+7y=3
krek1111 [17]

Answer:

A.   (3/5, 0).

Step-by-step explanation:

The x intercept occurs where  y = 0, so we have:

5x + 7(0) = 3

5x = 3

x = 3/5 so the required point is (3/5, 0).

6 0
3 years ago
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