2 years ago

You traveled 630 miles at 70 miles per hour. how many hours did it take to travel this distance

Mathematics

1 answer:

Sergio [31]2 years ago

8 0

Divide 630 miles by 70 mph to get:
9 hours

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Three evaluating expression Equation

Feliz [49]

Answer:

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Step-by-step explanation:

this is an example of a 3 evaluating expression equation. *I think*

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3 years ago

Answer this question I need help as soon as possible

torisob [31]

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3 years ago

Find the maximum rate of change of f at the given point and the direction in which it occurs. f(x, y) = 9 sin(xy), (0, 8)

malfutka [58]

Answer:

The magnitude is $\Delta f(0,8) = 72$

The direction is $i$ i.e toward the x-axis

Step-by-step explanation:

From the question we are told that

The function is $f(x, y) = 9sin(xy) \ \ \$

The point considered is $(0,8 )$

Generally the maximum rate of change of f at the given point and the direction is mathematically represented as

$\Delta f(x,y) = [\frac{\delta f(x,y)}{\delta x } i + \frac{\delta f(x,y)}{\delta y } j ]$

$\Delta f(x,y) = [\frac{\delta (9sin(xy))}{\delta x} i + \frac{\delta (9sin(xy))}{\delta y} i ]$

$\Delta f(x,y) = [9y cos (x,y) i + 9xcos (x,y) j]$

At $(0,8 )$

$\Delta f (0,8) = [9(8) cos(0* 8)i + 9(8) sin(0* 8)j ]$

$\Delta f (0,8) = 72 i$

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2 years ago

The travel time for a plane traveling at a rate of r kilometers per hour for 290 kilometers

Lapatulllka [165]

Time = distance / rate
time = 290 / rate

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3 years ago

Find the product for 56.44

miv72 [106K]

Step-by-step explanation:

55.44=2464

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3 years ago