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finlep [7]
4 years ago
11

Find the probability that when a couple has three ​children, at least one of them is a girl. ​(Assume that boys and girls are eq

ually​ likely.)what is the probability that at least one of the three children is a girl.

Mathematics
1 answer:
rjkz [21]4 years ago
7 0

Step-by-step explanation:

have a look at the above attachment... it has all the explanation

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There are 28 pens in a full box. how many pens are in 35 full boxes
Oksi-84 [34.3K]

Answer:

980

Step-by-step explanation:

Multiply the number of pens in a box by the number of boxes.

4 0
3 years ago
Please help only answer if you know please
Basile [38]

Answer:

a)Let the number of avocados that I brought be a and number of oranges be r.

b)    a+r=28 ---(1)

    a+2r=44 ---(2)

c) a+r=28

       a=28-r ---(3)

sub (3) into (2), 28-r+2r=44

                                    r=16

sub r=16 into (3), a=28-16

                            a=12

∴ I brought 12 avocados and 16 oranges.

3 0
3 years ago
Read 2 more answers
The guidance office at a high school surveyed their 12th grade students to know in which of four states they would prefer to liv
soldier1979 [14.2K]

Hence, the two way frequency table is:

                  Action                 Drama                Comedy         total

Highschool  26/128=0.20          14/128=0.11           22/128=0.17     0.48      

College      20/128=0.16            28/128=0.22        18/128=0.14      0.52          

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

total                   0.36                        0.33                     0.31                   1

Step-by-step explanation:

" When a two-way table displays percentages or ratios (called relative frequencies), instead of just frequency counts, the table is referred to as a two-way relative frequency table " .

We are given a table or data  as:

                         Action              Drama                     Comedy     Total

Highschool        26                     14                            22                 62

College              20                     28                            18                 68

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

Total                            46                      42                           40               128

The total number of students in all the categories and classes are: 128

Hence the two way frequency table is constructed by dividing all the frequencies by the total number of students i.e. 128.

                               Action                 Drama                Comedy         total

High school      26/128=0.20          14/128=0.11           22/128=0.17     0.48      

College           20/128=0.16            28/128=0.22        18/128=0.14      0.52          

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

total                      0.36                        0.33                     0.31                   1

6 0
3 years ago
Read 2 more answers
Solve each equation. Round your answers to the nearest ten-thousandth. Please show work. Part 3A​
Butoxors [25]

Answer:

19.

      log9(5x^2 + 10) - log9(10) = 1

<=> log9((5x^2 + 10)/10) = log9(9)

<=> (5x^2 + 10)/10 = 9

<=> 5x^2 + 10 = 90

<=> 5x^2 = 80

<=> x^2 = 16

<=> x = +/- (4)

20.

      log5(2x^2 + 4) + log5(3) = 2

<=> log5((2x^2 + 4) x 3) = log3(9)

<=> 6x^2 + 12 = 9

<=> 6x^2 = -3

 => No real x satisfies.  ( x^2 always larger or equal to 0)

21.

      log6(8) + log6(7 - 2x^2) = 2

<=> log6(8 x (7 - 2x^2)) = log6(36)

<=> 56 - 16x^2 = 36

<=> 16x^2 = 20

<=> x^2 = 5/4

<=> x = +/- sqrt(5/4)

Hope this helps!

:)

5 0
4 years ago
Solve the following inequality algebraically.<br><br> ∣x+7∣≤8
AlekseyPX

Answer:

x ≤ 1 and x ≥ −15

Step-by-step explanation:

<u>Solving Absolute Value</u>

  • We know that x + 7 ≤ 8 or x + 7 ≥ -8

<u>Condition 1:</u>

Step 1: Subtract 7 from both sides.

  • x + 7 - 7\leq 8 - 7
  • x\leq 1

<u>Condition 2:</u>

Step 1: Subtract 7 from both sides.

  • x + 7 - 7\geq -8 - 7
  • x\geq -15

Therefore, the answer is x ≤ 1 and x ≥ -15.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

<u></u>

4 0
3 years ago
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