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Gennadij [26K]
3 years ago
13

During her morning run Olivia’s heart beats 330 times in 3 minutes. Enter the number of beats Olivia’s heart would have in 4 min

utes at this rate.
Mathematics
2 answers:
iogann1982 [59]3 years ago
8 0

Answer:

440

Step-by-step explanation:

if you divide 330 by 3 that would be 110 in 1 minute so multiply that by 4 and you get 440

Fiesta28 [93]3 years ago
6 0

Answer:

440 beats

Step-by-step explanation:

330/3 = 110 beats per minute

110 * 4 = 440

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nikklg [1K]

Answer:

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Step-by-step explanation:

19)        Amount of oil in   =    amount of oil in final product

       .025(x) + .09(40-x)    =    .055(40)      (x = 2.5% amt   40 - x = 9% amt)

  x = 21.54 L  of   2.5 %     then 9% = 18.46 L

3 0
2 years ago
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:

Let <em>X</em> = number of students arriving at the 10:30 AM time slot.

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.

6 0
3 years ago
Read 2 more answers
find a formula for the nth term of the arithmetic sequence the first term is -2 and the common difference is 8
Rudiy27

Answer:

a(n) = -2 + 8(n - 1)

Step-by-step explanation:

General formula is a(n) = a(1) + d(n - 1), where d is the common difference.

Here a(n) = -2 + 8(n - 1)

3 0
3 years ago
If the outcome of event a is not affected by the occurrence of non-occurrence of event b, then events a and b are said to be
likoan [24]
Im pretty sure its independent 
4 0
3 years ago
K ÷1 3 =10 what is the answer to the equation?
adell [148]
 this the answer K=130
7 0
3 years ago
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