Mathematics: The tires on a certain car are 25 inches in diameter if the car is moving at a constant speed of 65 mph how many rotations is the front left tire making (1 mile = 5280 feet)

Given:To Find:Step-by-step explanation:...

The tires on a certain car are 25 inches in diameter

Ответ:

onlymyworld27

16.01.2022

The circumference of the tire is 25pi, and converting that to ft would be 2 1/12, so each mile (5280 feet), the tire makes 806.7245755441991
Rotations (in ft) per mile.

Because 2 1/12 times pi = 6.544984694978736, and 5280 (1mile) divided by that is about 806.7 rotations per mile

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Ответ:

kkingstone7062

23.08.2021

Mathematics

$\boxed{(f.g)(x) = 3 {x}^{3} - 15 {x}^{2} - 27x}$

Given:

$f(x) = x + 2 \\ \\ g(x) = 3x + 5$

To Find:

$(f.g)(x) = f(x) \times g(x)$

Step-by-step explanation:

$= f(x) \times g(x) = (3x)( {x}^{2} - 5x - 9) \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = (3x \times {x}^{2} ) - (3x \times 5x) - (3x \times 9)\\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 3 {x}^{3} - 15 {x}^{2} - 27x$

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The tires on a certain car are 25 inches in diameter if the car is moving at a constant speed of 65 mph how many rotations is the front left tire making (1 mile = 5280 feet)

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