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Brums [2.3K]
2 years ago
12

(help) what is 10 1/2 ÷ 9 2/6 = ?

Mathematics
2 answers:
3241004551 [841]2 years ago
6 0

Answer:

87

Step-by-step explanation:

my work is in the picture below

melamori03 [73]2 years ago
4 0

Answer:

1 1/8

Step-by-step explanation:

10 1/2 ÷ 9 2/6 =

= 10 1/2 ÷ 9 1/3

= 21/2 ÷ 28/3

= 21/2 × 3/28

= 3/2 × 21/28

= 3/2 × 3/4

= 9/8

= 1 1/8

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For f(x)=4x+1 and g(x)=x^2-5,find(f•g)(4)
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Answer:

(f•g)(4) = 45

Step-by-step explanation:

f(x)=4x+1

g(x)=x^2-5

(f•g)(x) = 4(x^2 -5)+1

(f•g)(4) = 4(4^2 -5)+1

(f•g)(4) = 4(16-5)+1

(f•g)(4) = 4(11)+1

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a statistics professor finds that when he schedules an office hour at the 10:30a, time slot, an average of three students arrive
Veseljchak [2.6K]

Answer:

The probability that in a randomly selected office hour in the 10:30 am time slot exactly two students will arrive is 0.2241.

Step-by-step explanation:

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The average number of students arriving at the 10:30 AM time slot is, <em>λ</em> = 3.

A random variable representing the occurrence of events in a fixed interval of time is known as Poisson random variables. For example, the number of customers visiting the bank in an hour or the number of typographical error is a book every 10 pages.

The random variable <em>X</em> is also a Poisson random variable because it represents the fixed number of students arriving at the 10:30 AM time slot.

The random variable <em>X</em> follows a Poisson distribution with parameter <em>λ</em> = 3.

The probability mass function of <em>X</em> is given by:

P(X=x)=\frac{e^{-\lambda}\lambda^{x}}{x!};\ x=0,1,2,3...,\ \lambda>0

Compute the probability of <em>X</em> = 2 as follows:

P(X=2)=\frac{e^{-3}3^{2}}{2!}=\frac{0.0498\times 9}{2}=0.2241

Thus, the probability that in a randomly selected office hour in the 10:30 am time slot exactly two students will arrive is 0.2241.

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3 years ago
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Answer:

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Step-by-step explanation:

r refer to the above attachment

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