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Brilliant_brown [7]
3 years ago
6

Supposed to pay $32 for a pair of shoes that was originally $40 what was the percent of the decrease in price of the shoes set u

p a proportion and solve.
[Please explain how you got that answer]
Mathematics
1 answer:
Eddi Din [679]3 years ago
4 0

Answer: 20% decrease.

<u>Step-by-step explanation:</u>

Percent\ Change = \dfrac{New - Original}{Original}

\dfrac{32-40}{40} = \dfrac{-8}{40} =-0.20 = -20\%

The negative sign represents a decrease.

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360∘

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In this problem, you will develop a model to predict whether a given car gets high or low gas mileage based on the auto data set
Charra [1.4K]

We havep(X)=eβ0+β1X1+eβ0+β1X⇔eβ0+β1X(1−p(X))=p(X),p(X)=eβ0+β1X1+eβ0+β1X⇔eβ0+β1X(1−p(X))=p(X),which is equivalent top(X)1−p(X)=eβ0+β1X.p(X)1−p(X)=eβ0+β1X.
To use the Bayes classifier, we have to find the class (kk) for whichpk(x)=πk(1/2π−−√σ)e−(1/2σ2)(x−μk)2∑Kl=1πl(1/2π−−√σ)e−(1/2σ2)(x−μl)2=πke−(1/2σ2)(x−μk)2∑Kl=1πle−(1/2σ2)(x−μl)2pk(x)=πk(1/2πσ)e−(1/2σ2)(x−μk)2∑l=1Kπl(1/2πσ)e−(1/2σ2)(x−μl)2=πke−(1/2σ2)(x−μk)2∑l=1Kπle−(1/2σ2)(x−μl)2is largest. As the log function is monotonally increasing, it is equivalent to finding kk for whichlogpk(x)=logπk−(1/2σ2)(x−μk)2−log∑l=1Kπle−(1/2σ2)(x−μl)2log⁡pk(x)=log⁡πk−(1/2σ2)(x−μk)2−log⁡∑l=1Kπle−(1/2σ2)(x−μl)2is largest. As the last term is independant of kk, we may restrict ourselves in finding kk for whichlogπk−(1/2σ2)(x−μk)2=logπk−12σ2x2+μkσ2x−μ2k2σ2log⁡πk−(1/2σ2)(x−μk)2=log⁡πk−12σ2x2+μkσ2x−μk22σ2is largest. The term in x2x2 is independant of kk, so it remains to find kk for whichδk(x)=μkσ2x−μ2k2σ2+logπkδk(x)=μkσ2x−μk22σ2+log⁡πkis largest.
ng expression
∫0.950.0510dx+∫0.050(100x+5)dx+∫10.95(105−100x)dx=9+0.375+0.375=9.75.∫0.050.9510dx+∫00.05(100x+5)dx+∫0.951(105−100x)dx=9+0.375+0.375=9.75.So we may conclude that, on average, the fraction of available observations we will use to make the prediction is 9.75%9.75%.res. So when p→∞p→∞, we havelimp→∞(9.75%)p=0.

8 0
3 years ago
Determine the maximum number of zeros. Then, determine the x-intercepts of the function. x^3-3x^2-22x+24
JulijaS [17]

Answer:

Three zeros x=-4,\ x=1,\ x=6

x-intercepts: (-4,0), (1,0), (6,0)

Step-by-step explanation:

Plot the graph of the function y=x^3-3x^2-22x+24 on the coordinate plane. This graph intersects the x-axis at three different points (see attached diagram):

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  • (6,0).

This means x=-4,\ x=1,\ x=6 are zeros of the function y=x^3-3x^2-22x+24

6 0
3 years ago
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