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My name is Ann [436]
3 years ago
14

Let f(x)=8/(1+3e)^(-0.7x)

Mathematics
1 answer:
Troyanec [42]3 years ago
5 0
For x = -3, <span>(-0.7x) equals (-0.7[-3]), or 2.1.
 
                                8                   8                       8
Then f(-3) =  ------------------- = ---------------- = ------------ = 0.31 (approx)
                        1 + 3*e^2.1      1 + 24.499        25.5</span>
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A survey of a group of seventh graders and a group of teachers at a local middle school asked how many siblings they each have.
mihalych1998 [28]

Answer:

1.5

Step-by-step explanation:

Attached to this answer is the diagram of the box plot described in the question, and the means from the plot are calculated thus;

Students;    no. of siblings

student 0     2

student 1      4

student 2     7

student 3     5

student 4     2

Total             20

Mean no. of siblings = (total number of siblings) ÷ (total number of students)

Note that number of students here are the once that had at least one sibling, others without siblings are not used in the calculation, hence 5 students (student-0 to student-4) make up total number of students, while the remaining 4 students (student-4 to student-9) are disregarded.

Therefore, mean = 20 ÷ 5 = 4 siblings.

6 0
3 years ago
Read 2 more answers
Please answer, thank you
JulijaS [17]

Answer:

C) 5

Step-by-step explanation:

5 0
3 years ago
Best Buy is having a sale on computers. Katherine picks out a computer that was originally $1099.99
borishaifa [10]

Answer:

$901.9918

Step-by-step explanation:

$901.9918

7 0
3 years ago
The spinner below is spun 60 times.<br> Results are shown in the table<br> below.
mezya [45]

Answer:

Step-by-step explanation:

Theortical probability

A = 1/4

B = 1/3

C = 5/12

Experamental probability

A = 18/60 = 3/10

B = 20/60 = 1/3

C =  22/60 = 11/30

8 0
2 years ago
I’m sorry but need help
arsen [322]

These are pretty easy once you get the concept.

think of <em>random letter</em> (x) as the term y, so in the case of p(x)=-3+4x, its just asking what is y when x equals all those values.

so p(-2) = -3 + 4(-2), since its asking to plug in -2 for x, which equals -11

p(0) = -3 + 4(0)

= -3

p(5) = -3 + 4(5)

= 17

4 0
3 years ago
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