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Mathematics : asked on charleneubah3902
 03.11.2022

Given the tunction f(x)= - x^2 + 4x - 3 ,find the rate of chango over the interval [-2,7] (you can take the negative leading coefficlent off for reg ed if you want) *

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09.07.2023, solved by verified expert
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Nitin Arora
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Step-by-step explanation:

Given function:  Given the tunction f(x)= - x^2 + 4x - 3 ,find, №18011047, 03.11.2022 15:01

Given the tunction f(x)= - x^2 + 4x - 3 ,find, №18011047, 03.11.2022 15:01

Given the tunction f(x)= - x^2 + 4x - 3 ,find, №18011047, 03.11.2022 15:01

Given the tunction f(x)= - x^2 + 4x - 3 ,find, №18011047, 03.11.2022 15:01

Therefore, average rate of change over the interval -2 ≤ x ≤ 7

Given the tunction f(x)= - x^2 + 4x - 3 ,find, №18011047, 03.11.2022 15:01

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Mathematics
Given the tunction f(x)= - x^2 + 4x - 3 ,find the rate of chango over the interval [-2,7] (you can take the negative leading coefficlent off for reg ed if you want) *
Step-by-step answer
P Answered by Specialist

-1

Step-by-step explanation:

Given function:  f(x)=-x^2+4x-3

\implies f(-2)=-(-2)^2+4(-2)-3=-15

\implies f(7)=-(7)^2+4(7)-3=-24

\textsf{Average rate of change}=\dfrac{f(b)-f(a)}{b-a}\quad\textsf{for}\:a\leq x\leq b

Therefore, average rate of change over the interval -2 ≤ x ≤ 7

\implies \textsf{Average rate of change}=\dfrac{f(7)-f(-2)}{7-(-2)}=\dfrac{-24-(-15)}{9}=-1

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Neil places £2000 in a bank account that pays 1.5% simple interest per year. How much interest will he earn in 6 years?
Step-by-step answer
P Answered by PhD

SI=(P*R*T)/100

P=2000

R=1.5

T=6

SI=(2000*1.5*6)/100

=(2000*9)/100

=180

Neil will earn interest of 180

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The answer is in the image 

The answer is in the image 
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Step-by-step answer
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For every 8 cars there are 7 trucks

Therefore,

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The solution is in the following image

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Step-by-step answer
P Answered by PhD

y=2x+15

where y=Value of coin

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Step-by-step answer
P Answered by PhD

F=ma

where F=force

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a=acceleration

Here,

F=4300

a=3.3m/s2

m=F/a

    =4300/3.3

    =1303.03kg

Approximately it is aqual to 1300kg

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The answer is in the image 

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