Podría alguien ayudarme, es para mañana.

Fast I need help do t understand !!!!!

goblinko [34]

Answer:

....................21 .....................

6 0

3 years ago

Read 2 more answers

Can u change order of operations ?

Anni [7]

Answer:

its best no to

Step-by-step explanation:

The only thing you can really change is switching subtraction and addiction, or division and multiplication. In the long run though its best just to say with the regural order and its earier later on.

please, (parentheses)

excuse (exponents)

my (multipliction)

dear (division)

aunt (addiction)

sally (subtraction)

7 0

3 years ago

HELP HELP HELP HELP HELP HELP plsssssss¡!

mylen [45]

Answer:

$201.60

Step-by-step explanation:

12% of 180 = 21.6

Cost of health club = 180

180 + 21.6 = $201.60

7 0

3 years ago

After arranging the terms in descending powers of a variable, select the opposite of the polynomial.

kondaur [170]

Answer: -4n3+12n2+7n-9

Step-by-step explanation: it basically the opposite sign (positive or negative) switched, and the order backwards. hope that helped

6 0

3 years ago

Data collected at Toronto Pearson International Airport suggests that an exponential distribution with mean value 2725hours is a

Ivan

Answer:

a) What is the probability that the duration of a particular rainfall event at this location is at least 2 hours?

We want this probability"

$P(X >2) = 1-P(X\leq 2) = 1-(1- e^{-0.367 *2})=e^{-0.367 *2}= 0.48$

At most 3 hours?

$P(X \leq 3) = F(3) = 1-e^{-0.367*3}= 1-0.333 =0.667$

b) What is the probability that rainfall duration exceeds the mean value by more than 2 standard deviations?

$P(X > 2.725 + 2*5.540) = P(X>13.62) = 1-P(X$

What is the probability that it is less than the mean value by more than one standard deviation?

$P(X$

Step-by-step explanation:

Previous concepts

The exponential distribution is "the probability distribution of the time between events in a Poisson process (a process in which events occur continuously and independently at a constant average rate). It is a particular case of the gamma distribution". The probability density function is given by:

$P(X=x)=\lambda e^{-\lambda x}$