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ryzh [129]
3 years ago
9

(a) Use Euler's method with step size 0.2 to estimate y(1.4), where y(x) is the solution of the initial-value problem y' = 3x −

3xy, y(1) = 0. (Round your answer to four decimal places.) y(1.4) =

Mathematics
1 answer:
Archy [21]3 years ago
5 0

Answer:

Step-by-step explanation:

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The loaves of rye bread distributed to a local store by a certain bakery have an average length of 30 centimeters and a standard
cupoosta [38]

Answer:

79.91% of loaves are between 26.94 and 32.18 centimeters

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 30, \sigma = 2

What percentage of loaves are between 26.94 and 32.18 centimeters

This is the pvalue of Z when X = 32.18 subtracted by the pvalue of Z when X = 26.94.

X = 32.18:

Z = \frac{X - \mu}{\sigma}

Z = \frac{32.18 - 30}{2}

Z = 1.09

Z = 1.09 has a pvalue of 0.8621

X = 26.94:

Z = \frac{X - \mu}{\sigma}

Z = \frac{26.94 - 30}{2}

Z = -1.53

Z = -1.53 has a pvalue of 0.0630

0.8621 - 0.0630 = 0.7991

79.91% of loaves are between 26.94 and 32.18 centimeters

5 0
4 years ago
Suppose a binomial event has a probability of success of 0.3, and 750 trials are performed. What is the standard deviation of th
stepladder [879]
Hello there. Sorry from last time.

What is the standard deviation of the possible outcomes? Roundyour answer to two decimal places.

<span>B.12.55</span>


8 0
3 years ago
Read 2 more answers
Y={1 if x is rational 0 if x is irrational<br><br> How would you describe it's graph?
Setler [38]

The set of rational plus irrational numbers equals ALL REAL NUMBERS


Yes, it is a function because every x-value maps into only one y-value. In other words, because rational and irrational are mutually exclusive, x does not map into both 0 and 1


Domain is all real numbers.


Range is 0 or 1


y-intercept happens when x=0, so that is a rational number and y = 1


There are an infinite number of x-intercepts. Every irrational number is an x-intercept


Neither even or odd because it is not symmetric with either the y-axis or the origin.


The graph jumps between y=0 and y=1


Hope that helps Answer:


Step-by-step explanation:


6 0
4 years ago
Find the inverse of the matrices if they Exist. Use the algorithm introduced in the section. [1 0 -2 -3 1 4 2 -3 4]
KiRa [710]

Answer:

\frac{1}{2} \left[\begin{array}{ccc}16&6&2\\20&8&2\\7&3&1\end{array}\right]

Step-by-step explanation:

Given is a matrix 3x3 as

\left[\begin{array}{ccc}1&0&2\\-3&1&4\\2&-3&4\end{array}\right]

|A| =2 hence inverse exists.

Cofactors are 16   20   7

                        6     8    3

                         2     2    1

Hence inverse =

\frac{1}{2} \left[\begin{array}{ccc}16&6&2\\20&8&2\\7&3&1\end{array}\right]

6 0
3 years ago
Anyone else 16 years old ????
enyata [817]

Answer: yes lol

Step-by-step explanation:

6 0
3 years ago
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