All categories

3 years ago

Please help me with this question

Mathematics

1 answer:

adoni [48]3 years ago

5 0

Answer:

$y = e^{x^2 - 3x}\\\\\\Let \ u = x^2 - 3x\\\\y = e^u\\\\\frac{dy}{du} = e^u\\\\\frac{du}{dx} = 2x - 3\\\\y' = \frac{dy}{dx} = \frac{dy}{du} *\frac{du}{dx} = e^u * (2x -3)\\\\Substitute \ u = x^2 -3\\\\y' = (2x -3)e^{x^2-3x}\\\\option A$

You might be interested in

What two numbers make on thousand

Igoryamba

Answer:

500 and 500

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Hey. ill give brainliest to whoever answers this question, pls and thanks

lbvjy [14]

Answer:

whats the question

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Scores on a college entrance exam are normally distributed with a mean of 550 and a standard deviation of 100. Find the value th

Alinara [238K]

Answer:

The value that represents the 90th percentile of scores is 678.

Step-by-step explanation:

Problems of normally distributed samples are solved using 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 problem, we have that:

$\mu = 550, \sigma = 100$

Find the value that represents the 90th percentile of scores.

This is the value of X when Z has a pvalue of 0.9. So X when Z = 1.28.

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

$1.28 = \frac{X - 550}{100}$

$X - 550 = 100*1.28$

$X = 678$

The value that represents the 90th percentile of scores is 678.

4 0

3 years ago

Give an example of a real-world situation involving two unknown quantities. Then write an algebraic expression to represent the

RUDIKE [14]

A real world expression would be Toby had makes 3 dollars per hour he wants to buy a ps4 for 40 dollars. he already has 10 dollars. how many hours does he have to work to afford his ps4. 3x+10=40

3 0

3 years ago

Read 2 more answers

Please help me What is the quotient when 2/3 is divided by 5/6

Margaret [11]

Answer:

You on? I’m bored! You- you on? I’m bored

Step-by-step explanation:

4 0

3 years ago