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Alisiya [41]
3 years ago
15

Find the L. C. M in division method of the followinga) 18,27b) 21,38​

Mathematics
1 answer:
Sever21 [200]3 years ago
5 0

Answer:

hope it will be helpful to you.....

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19) Suppose that there are 55 Democrats and 45 Republicans in the US Senate. A committee of seven senators is to be formed by se
andre [41]

Answer:

Probability = 0.12676992

Step-by-step explanation:

The probability of selecting committee of seven composed of all Democrats.

Total number = 45+55= 100

Number of Democrats = 55

Number of committee = 7

Probability= (55C7)/(100/7)

Where C represent combination sign

Probability = (202927725/1.60075608*10^10)

Probability = 0.12676992

7 0
2 years ago
The function g(n) = n2 − 16n + 69 represents a parabola.
miss Akunina [59]
Hello : 
<span>g(n) = n2 − 16n + 69
       =( n²-16n+64)-64 +69.....(</span><span> completing the square)
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</span><span>the axis of symmetry is the line : n = 1</span>
5 0
3 years ago
(Photo) Please help me!
SOVA2 [1]
Volume =πr²*h=π*7²*4=196π
answer B
3 0
2 years ago
Which of the following sets of ordered pairs does not define a function? {(−1,4),(0,4),(1,4),(2,4),(3,4)} { ( − 1 , 4 ) , ( 0 ,
Novay_Z [31]

Step-by-step explanation:

5 is not function because an x cannot map on 2 different y's

6 0
3 years ago
Military radar and missile detection systems are designed to warn a country of enemy attacks. A reliability question deals with
Nadusha1986 [10]

Answer:

Step-by-step explanation:

Given that a particular detection system has a 0.83 probability of detecting a missile attack.

Also each system is independent of the other to detect missile attack.

a)  the probability that a single detection system will detect an attack=0.83

b) the probability that at least one of the systems will detect the attack given two systems= 1-Prob no system detects

=1-(1-0.83)(1-0.83)\\\\=1-0.0289\\=0.9711

c)  If three systems are installed,  the probability that at least one of the systems  will detect the attack

= 1- none of the three systems detect attack

= (1-0.17^3)\\=1-0.004913\\=0.995087

d) We find that probability of detecting is more if we increase the system form 1 to 2 and 2 to 3.

Hence for safety and defence purpose multiple detection system is recommended.

7 0
3 years ago
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