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3 years ago

Describe what happens to the exponential function when the value of "k" is positive. *

Mathematics

1 answer:

Schach [20]3 years ago

5 0

Answer:

Step-by-step explanation:It isn’t. There are really 4 different versions of the exponential function. Positive (like the growth of money invested at 5%), negative (like the US debt constantly becoming more negative), positive decay (like the half life of a radioactive element), or negative decay ( pay half your loan amount in year 1, 1/4 in year two, 1/8 in year three, you in theory will never pay your loan completely but the debt is growing closer to zero.

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Dina and Masha start cycling on a 20 km bike path at the same time. When Dina reaches the end of the path, Masha still has 4 km

sammy [17]

Answer:

0.5 hour

Step-by-step explanation:

Given

Speed of Dina = 10 km/h

Distance = 20 km

So the time Dina taken to complete the track is:

$Speed=\frac{distance}{time}\\10=\frac{20}{time}\\time=\frac{20}{10}\\ time=2\ hours$

The time taken by Dina is 2 hours. As masha started with dina but she was 4 km of the path left to cycle,

her distance covered in 2 hours was:

$Distance\ covered\ by\ Masha\ in\ 2\ hours=20-4\\=16 km$

So we know the time and distance:

Now,

$Speed\ of\ Masha=\frac{distance}{time}\\ =\frac{16}{2}\\ =8\ kilometer\ per\ hour$

We have to calculate the time that will be needed by MAsha to complete the track:

As we know the speed and remaining distance

$Speed=\frac{distance}{time}\\8=\frac{4}{time}\\ time=\frac{4}{8}\\time=0.5\ hours$

Masha needs 0.5 hour to complete the track ..

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3 years ago

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Advocard [28]

Answer:

The answer is False maybe

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3 years ago

Ron wants to run 6 miles this week. He ran

Yanka [14]

Ron would need to run 3 miles

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Two hundred ten balloons are filled for a reception. This is 70 percent of the entire number of balloons purchased. Which equati

Mazyrski [523]

210 balloons divided by 70 (the percent) = 3 (1% = 3 balloons)

3 times 100 = 300 Balloons

The total number of balloons purchased is

300 balloons

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4 years ago

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Sonja [21]

Answer:

14 to the right and three down.

Step-by-step explanation:

right/up is positive and left/down is negative

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3 years ago