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telo118 [61]
3 years ago
13

What is a formula for the nth term of the given sequence? 20,50, 125...

Mathematics
1 answer:
loris [4]3 years ago
3 0

Answer:

a(n) = 20*2.5^(n - 1)

Step-by-step explanation:

Note that 50 is 2.5 times 20, and that 125 is 2.5 times 50.  Thus the common factor is 2.5.  The formula for the nth term is

a(n) = a(1)*r^(n - 1)  => a(n) = 20*2.5^(n - 1)

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Answer:

it would be 14.70

Step-by-step explanation:

4 0
3 years ago
A group of employees of Unique Services will be surveyed about a new pension plan. In-depth interviews with each employee select
mixer [17]

Answer:

59/1000

Step-by-step explanation:

Given in the question, the section will follow

<u> Event                    Number of employees                     Classification</u>

A                                                      120                            Supervisors

B                                                       50                             Maintenance

C                                                       1460                           Production

D                                                       302                           Management

E                                                         68                              Secretarial

<u>Total                                                  2000                               all employees</u>

Probability that a person selected is in maintenance

P(M)= 50/2000 =1/40

Probability that a person selected in in secretarial

P(S)=68/2000 = 17/500

The probability that the first person selected is either in maintenance or in secretarial you add the two

1/40 + 17/500 = 59/1000

8 0
3 years ago
Help me plsss!!!! plsss!!!
Sholpan [36]

Step-by-step explanation:

Substitute the x values from the table into the equation.

<u>Substitute -4 into the equation:</u>

y = -3(-4) + 4

y = 12 + 4

y = 16

<u>Substitute -2 into the equation:</u>

y = -3(-2) + 4

y = 6 + 4

y = 10

<u>Substitute 0 into the equation:</u>

y = -3(0) + 4

y = 0 + 4

y = 4

<u>Substitute 2 into the equation:</u>

y = -3(2) + 4

y = -6 + 4

y = -2

y = 16, 10, 4, -2

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In Two Different Ways:

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