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grandymaker [24]
3 years ago
11

Is the inverse of a function always a function?

Mathematics
2 answers:
IRINA_888 [86]3 years ago
8 0

Answer:

Sometimes

Step-by-step explanation:

Olenka [21]3 years ago
7 0
Not always depending on that specific function.<span />
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Susan makes $22 per hour in a clerical position. If she works 30 hours per week, what is her gross
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Select D $660 is the answer
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4 more than twice a number
Nataliya [291]
Twice means two times something so2a. Four more than means adding for so your answer is 2a+4
7 0
3 years ago
Some of the children at a school arrive by car.
scZoUnD [109]

Answer:

  • <u>74%</u>

Explanation:

You can build a two-way relative frequency table to represent the data:

These are the columns and rows:

               Car         No car      Total

Boys

Girl

Total

Fill the table

  • <em>30% of the children at the school are boys</em>

             Car         No car      Total

Boys                                       30%

Girl

Total

  • <em>60% of the boys at the school arrive by car</em>

That is 60% of 30% = 0.6 × 30% = 18%

             Car         No car      Total

Boys      18%                         30%

Girls

Total

By difference you can fill the cell of Boy and No car: 30% - 18% = 12%

             Car         No car      Total

Boy       18%           12%         30%

Girl

Total

Also, you know that the grand total is 100%

             Car         No car      Total

Boy       18%           12%         30%

Girl

Total                                     100%

By difference you fill the total of Girls: 100% - 30% = 70%

             Car         No car      Total

Boy       18%           12%         30%

Girl                                         70%

Total                                     100%

  • <em>80% of the girls at the school arrive by car</em>

That is 80% of  70% = 0.8 × 70% = 56%

             Car         No car      Total

Boy       18%           12%         30%

Girl       56%                         70%

Total                                     100%

Now you can finish filling in the whole table calculating the differences:

             Car         No car      Total

Boy       18%           12%         30%

Girl        56%         14%         70%

Total     74%          26%      100%

Having the table completed you can find any relevant probability.

The probability that a child chosen at random from the school arrives by car is the total of the column Car: 74%.

That is because that column represents the percent of boys and girls that that  arrive by car: 18% of the boys, 56% of the girls, and 74% of all the the children.

8 0
3 years ago
Helppp
yulyashka [42]

Answer:

           

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
ANSWER PLEASE..................
Lena [83]
The answer is 74.32 y ok it welcome
5 0
3 years ago
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