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sveticcg [70]
3 years ago
11

5y+4 times 2 what is the coefficient in this expression?

Mathematics
1 answer:
rodikova [14]3 years ago
3 0

Answer: 5

Step-by-step explanation: The coefficient is the number that comes right before the variable. Another way to say this is it's what the variable is multiplied by.

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The reference desk of a university library receives requests for assistance. Assume that a Poisson probability distribution with
NISA [10]

Answer:

a) 0.125

b) 7

c) 0.875 hr

d) 1 hr

e) 0.875

Step-by-step explanation:l

Given:

Arrival rate, λ = 7

Service rate, μ = 8

a) probability that no requests for assistance are in the system (system is idle).

Let's first find p.

a) ρ = λ/μ

\frac{7}{8} = 0.875

Probability that the system is idle =

1 - p

= 1 - 0.875

=0.125

probability that no requests for assistance are in the system is 0.125

b) average number of requests that will be waiting for service will be given as:

λ/(μ - λ)

= \frac{7}{8 - 7}

= 7

(c) Average time in minutes before service

= λ/[μ(μ - λ)]

= \frac{7}{8(8 - 7)}

= 0.875 hour

(d) average time at the reference desk in minutes.

Average time in the system js given as: 1/(μ - λ)

= \frac{1}{(8 - 7)}

= 1 hour

(e) Probability that a new arrival has to wait for service will be:

λ/μ =

{7}{8}

= 0.875

5 0
3 years ago
Pls be quickly I beg you I beg you the Lord answer correctly
dalvyx [7]

Answer

300

Step-by-step explanation

4 0
3 years ago
Read 2 more answers
-5cos105°+5cos165° =??​
almond37 [142]

Answer:

-3.53553390593

Step-by-step explanation:

5(cos165-cos105)=-3.53553390593

3 0
3 years ago
The diameter of a circle is 9 in. Find its circumference in terms of . Answer: C = in Submit Answer
Pie
C\text{ = 9}\pi\text{ in}

To find the circumference, we will have to multiply the length of the diameter by pi

Mathematically, we have this as;

\begin{gathered} C\text{ = }\pi\times d \\ C=\text{ }\pi\times9\text{ = 9}\pi \end{gathered}

7 0
1 year ago
Divide 20 by the difference of 14 and 9.
vekshin1
The answer is 4 because 14-9=5 and 20/5=4
6 0
3 years ago
Read 2 more answers
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