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3 years ago

IM STUCK i need help WITH THIS PROBLEM THE NUMBER 4 will give brainly

Mathematics

2 answers:

exis [7]3 years ago

8 0

Answer:

Ok say your social life is on that scale, Now the moment you walk into school your life is A which means it hasn't made it anywhere..now as you progress your love life goes up and becomes a B soon you grow popular and hit C as your results sky rocket..suddenly something you do affects that maybe a bad grade or something you did to someone then your social life drops dramatically to a D and soon crumbling to an E.

~ Zachary Mark brainliest if you want Thanks <3 Have a nice day!!!

LenKa [72]3 years ago

6 0

Answer:

The depth of water in a stream bed over time

Step-by-step explanation:

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Find the derivative<br>f (x ) = (x-5)^2 (3-x)^2

zavuch27 [327]

Given:

The function is

$f(x)=(x-5)^2(3-x)^2$

To find:

The derivative of the given function.

Solution:

Chain rule of differentiation:

$[f(g(x))]'=f'(g(x))g'(x)$

Product rule of differentiation:

$[f(x)g(x)]'=f(x)g'(x)+g(x)f'(x)$

We have,

$f(x)=(x-5)^2(3-x)^2$

Differentiate with respect to x.

$f'(x)=(x-5)^2\dfrac{d}{dx}(3-x)^2+(3-x)^2\dfrac{d}{dx}(x-5)^2$

$f'(x)=(x-5)^2[2(3-x)(0-1)]+(3-x)^2[2(x-5)(1-0)]$

$f'(x)=(x^2-10x+25)(-6+2x)+(9-6x+x^2)(2x-10)$

$f'(x)=(x^2)(-6)+(-10x)(-6)+(25)(-6)+(x^2)(2x)-10x(2x)+25(2x)+(9)(2x)+(-6x)(2x)+x^2(2x)+9(-10)+(-6x)(-10)+x^2(-10)$

On further simplification, we get

$f'(x)=-6x^2+60x-150+2x^3-20x^2+50x+18x-12x^2+2x^3-90+60x-10x^2$

$f'(x)=(2x^3+2x^3)+(-6x^2-20x^2-12x^2-10x^2)+(60x+50x+18x+60x)+(-90-150)$

$f'(x)=4x^3-48x^2+188x-240$

Therefore, the derivative of the given function is $f'(x)=4x^3-48x^2+188x-240$ .

3 0

3 years ago

y=x^-5 A) translate 5 units down B) translate 5 units up C) translate 5 units left D translate 5 units right

RSB [31]

Answer:

translates 5 units down

Step-by-step explanation:

anything that isn't attached to x would be a change to y

in this case, - 5 is being refered to down

4 0

4 years ago

5x2 = 16x +rewrite the equation in factored form

Paraphin [41]

Answer = 16/5 or x(1)=0

X •(5x-16)=0
X=0 and 5x-16=0
5x-16=0 then solves into 16/5 (fraction form or 3.2 decimal)

4 0

3 years ago

A record store owner finds that 20% of customers entering her store make a purchase. One morning 180 people, who can be regarded

katen-ka-za [31]

Answer:

a) 0.2

b) 0.0009

c) 0.0298

d) 0.0465 = 4.65% probability that the sample proportion is less than 0.15.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1-p)}{n}}$