3 years ago

Select the domain and range of F.

Mathematics

1 answer:

Strike441 [17]3 years ago

4 0

Answer:

Step-by-step explanation:

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The time t required to drive certain distance varies inversely with the speed r. It takes 2 hours to drive the distance at 40 mi

Roman55 [17]

Answer:

$\frac{16}{9}$ hours

Step-by-step explanation:

Whenever 2 quantities (suppose a and b) are inversely proportional to each other, we can write an proportionality equation (with k as proportional constant) as:

$a=\frac{k}{b}$

Since, here t is INVERSELY PROPORTIONAL to r, we can say:

$t=\frac{k}{r}$

Firstly, we have t = 2 hour and r = 40 mph, so we find k:

$t=\frac{k}{r}\\2=\frac{k}{40}\\k=2*40\\k=80$

Now, secondly, we have r = 45 and k = 80, we need to find t:

$t=\frac{80}{45}\\t=\frac{16}{9}$

So, it would take $\frac{16}{9}$ hours

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3 years ago

What is the value of 3.2n when n=5

Lady bird [3.3K]

3.2n=3.2*5

3.2*5=16 the answer is 16

Hope this helps, have a great day!!

:)

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3 years ago

ASAP!!!!! Help please ‼️

ZanzabumX [31]

Answer: The answer should be 3.

Step-by-step explanation: You plug in 2 instead of X and that’s it. Then you calculate your equation, and receive your answer.

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3 years ago

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A car travels at an average speed of 64 mph. How many miles does it travel in five hours and 45 minutes

Gwar [14]

Answer:

368 miles

Step-by-step explanation:

Sorry if its wrong

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3 years ago

Wind forms dunes through ___.

Leto [7]

Answer:<u><em> I think it would have to be c) Sublimation</em></u>

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