3 years ago

The base of a ladder is is placed 6ft from the bottom of the house the ladder reaches 8ft up the house how long is the ladder

Mathematics

1 answer:

Sidana [21]3 years ago

8 0

6^2+8^2=10^2
or sqrt(6^2+8^2)=10

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12 + 5 + 32 × 10 − 5 = (12 + 5) + 32 × (10 − 5) =

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false

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Step-by-step explanation:

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The fuel economy of a car, measured in miles per gallon, is modeled by the function ƒ(s) = –0.009s2 + 0.699s + 12 where s repres

Kisachek [45]

Answer:

The maximum fuel economy of the car is 25.57225

Step-by-step explanation:

we are given

$f(s)=-0.009s^2+0.699s+12$

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where s represents the average speed of the car, measured in miles per hour

So, we have to maximize f(s)

So, firstly we will find derivative

$f'(s)=-0.009*2s+0.699*1+0$

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now, we can set it to 0

and then we can solve for s

$f'(s)=-0.018s+0.699=0$

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To find maximum fuel economy , we can plug s into f(s)

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$f(\frac{233}{6})=25.57225$

So,

The maximum fuel economy of the car is 25.57225

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