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2 years ago

The minute hand of a clock is 6 inches long and moves from 12 to 4 o'clock. How far does the tip of the minute hand move?

1 answer:

4 0

If it moves from 12 to 4 o'clock then it moves (20/60) which is the fraction of an hour

(20/60) 37.68

simplify (20/60)

(1/3) 37.68

the answer would be 12.56 inches

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Please help asap, its due in 20min

mojhsa [17]

Answer:

The scalar factor is 4/3

Step-by-step explanation:

The bottom of triangle B is 16 units, the bottom of triangle A is 12 units. So to find the scalar factor you have to divide B by A:

6/12=4/3

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2 years ago

Solve 4x+2y=-6 for y

mel-nik [20]

Answer:

y=-2x-3

Step-by-step explanation:

4x+2y=-6

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3 years ago

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sergiy2304 [10]

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Step-by-step explanation:

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2 years ago

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2 years ago

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

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

where

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

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

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

now, we can set it to 0

and then we can solve for s

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

$s=\frac{233}{6}$

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

$f(\frac{233}{6})=-0.009(\frac{233}{6})^2+0.699(\frac{233}{6})+12$

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

So,

The maximum fuel economy of the car is 25.57225

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3 years ago

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