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Dmitry_Shevchenko [17]

3 years ago

15

which of the following is the value of a when the function f(x)=3|x| is written in the standard form of an absolute value functi

on?

2 answers:

Usimov [2.4K]3 years ago

8 0

Answer:

3 on Edge-nuity

Step-by-step explanation:

yarga [219]3 years ago

7 0

Answer:I think it’s c

Step-by-step explanation:

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What is the answer to the problem

Nata [24]

The question is:
A recipe for a batch of 3 dozen chocolate chip cookies calls for 3 cups of flour 1 cup of suger and 2 cups of chocolate chips how much of each ingredient should be used to make 2 dozen cookies?

find ratio
for 3 dozen batches, you need 3 cups of flour
so dozen of batches=number of cups of flour

then 3 dozen batches is 1 cup of sugar
so every dozen batches is 1/3 cup sugar

then 3 dozen batches is 2 cups choc chips
so every dozen is 2/3 cups choc chips

for 2 batches
that is 2 cup of flour
2/3 cup of sugar
and 4/3 cup chocolate chips

5 0

3 years ago

What is one-fourth of four sevenths

AlekseyPX

1/4 x 4/7
do the top numbers first. 1 x 4 is 4do bottom numbers next 4 x 7 is 28

that leaves you with 4/28. But you have to reduce.

4/28 = 2/14 = 1/7 (notice I just cut both the top and bottom numbers in half each time I reduced until I couldn't reduce any more).
So, final answer is 1/7

6 0

4 years ago

Read 2 more answers

problem solving lesson 6a seven digit number has a 0 in the ones place, a 6in the ten thousands place, an 8 in the millions plac

viktelen [127]

8,565,550 is the number

5 0

4 years ago

Find the value of x. Round your answer to the nearest tenth

Sergio039 [100]

Answer:

Your answer would be 24 but then if you round it to the nearest tenth the you would have 20

Step-by-step explanation:

i hope this helps

4 0

2 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:

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

The cumulative distribution for this function is given by:

$F(X) = 1- e^{-\lambda x}, x\ geq 0$

We know the value for the mean on this case we have that :

$mean = \frac{1}{\lambda}$

$\lambda = \frac{1}{Mean}= \frac{1}{2.725}=0.367$

Solution to the problem

Part 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?

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

Part b

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

The variance for the esponential distribution is given by: $Var(X) =\frac{1}{\lambda^2}$

And the deviation would be:

$Sd(X) = \frac{1}{\lambda}= \frac{1}{0.367}= 2.725$

And the mean is given by $Mean = 2.725$

Two deviations correspond to 5.540, so we want this probability:

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

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

For this case we want this probablity:

$P(X$

8 0

4 years ago