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Crazy boy [7]
2 years ago
5

Which value is in the domain of f(x)?

Mathematics
1 answer:
Mariana [72]2 years ago
4 0

Answer: x = 4

Step-by-step explanation:

Here we have a piecewise function.

One piece works for values of x such that:   -6 < x < 0

And the other piece works for values of x such that: 0 < x ≤ 4

Then the domain of this function is:

D = (-6, 0) U (0, 4]

Notice that, becuse we use the symbols ><, the values of x:

x = -6

x = 0

Do not belong to this domain.

While becuase we use the symbol ≤ in the right end, the value x = 4 does belong to the domain.

Then for the given options, the only value that belongs to the domain is the third option, x = 4.

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7 0
3 years ago
A number increase by its product with 7 equals 48. Find the number.
AVprozaik [17]
Let a number = n

n(7) = 48

isolate the n. Divide 7 from both sides

n(7)/7 = 48/7

n = 48/7

Divide

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hope this helps
4 0
3 years ago
Plz any1 need help on this question
Andreas93 [3]

Since the intersection is - by definition - common to both sets, we can work out the number of people that use only the fitness suite or the swimming pool.

We know that 57 people use the fitness suite, but 36 of those are already counted in the intersection. So, 57-36=21 people use only the fitness suite.

The same goes for the swimming pool: 49-36=13 people use only the swimming pool.

So, we have:

  • 21 people using fitness suite only
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  • 36 people using both

This sums to 21+13+36=70 people. We deduce that 30 people don't use any of the features.

6 0
3 years ago
The ratio of chocolate chip cookies, snickerdoodles and oatmeal raisin cookies was 2:5:7. During the class party 12 chocolate ch
Schach [20]

Answer: 127 cookies

Step-by-step explanation:

1. If you look back to the text you will see that 12 is 1 in 1:3:4 and you multiply that by 2. 12 * 2 = 24.

2. Divide 24 by 3 and that gives you 8 than times it by 5 for it to give you 40

3. Divide 36 by 4 and that equals to 9 than multiply it by 7 which that gives you 63

4. Add 24, 40, and 63 for it to give you 127

Thank you for following these steps if it is correct and this is my first time so if I am incorrect I will look upon my mistake and correct and help many of you people who need help

4 0
3 years ago
Jana finished 1/4 of her homework at school and 2/3 of it before dinner. How much of her homework has she done
Galina-37 [17]

Answer:

the answer is 11/12

Step-by-step explanation:

well she has done 11/12 of her work so she just needs to do i more question baccically

5 0
3 years ago
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