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3 years ago

What does the digit 7 represent in 701, 280?

Mathematics

2 answers:

Hunter-Best [27]3 years ago

4 0

Answer:

The 7 represents the 10,000

Step-by-step explanation:

Its not the hundred because the 2 in 280 is

kenny6666 [7]3 years ago

3 0

Answer: seven hundred thousand

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he half-life for a link on a social network website is 2.6 hours. Write an exponential function T that gives the percentage of

pychu [463]

Answer:

% Remaining $= [1-(1/2)^{\frac{t}{2.6}}]x100$

And replacing the value t =5.5 hours we got:

% Remaining $= [1-(1/2)^{\frac{5.5}{2.6}}]x100 =76.922\%$

Step-by-step explanation:

Previous concepts

The half-life is defined "as the amount of time it takes a given quantity to decrease to half of its initial value. The term is most commonly used in relation to atoms undergoing radioactive decay, but can be used to describe other types of decay, whether exponential or not".

Solution to the problem

The half life model is given by the following expression:

$A(t) = A_o (1/2)^{\frac{t}{h}}$

Where A(t) represent the amount after t hours.

$A_o$ represent the initial amount

t the number of hours

h=2.6 hours the half life

And we want to estimate the % after 5.5 hours. On this case we can begin finding the amount after 5.5 hours like this:

$A(5.5) = A_o (1/2)^{\frac{5.5}{2.6}}$

Now in order to find the percentage relative to the initial amount w can use the definition of relative change like this:

% Remaining = $\frac{|A_o - A_o(1/2)^{\frac{5.5}{2.6}}|}{A_o} x100$

We can take common factor $A_o$ and we got:

% Remaining $= [1-(1/2)^{\frac{t}{2.6}}]x100$

And replacing the value t =5.5 hours we got:

% Remaining $= [1-(1/2)^{\frac{5.5}{2.6}}]x100 =76.922\%$

5 0

3 years ago

Helpppppppppppppp please

Bingel [31]

Answer:29

so the mini triangle in the corner is a mini model of the entire triangle, all you have to do is take the width or bottom number and find the factor in which it is smaller, then take the height of the smaller triangle and add the factor in which it increases to it. so the factor goes up by 31 1/2--9=22 1/2 and adding the factor in which it increases to the height is 22 1/2+6 1/2=29 because 2 halfs make a whole.

Step-by-step explanation:

mr clean has big brien 0-0

5 0

3 years ago

Read 2 more answers

A graph titled velocity versus time has horizontal axis time (seconds) and vertical axis velocity (meters per second). A line ha

AnnyKZ [126]

Acceleration is the change in velocity with respect to the time. The acceleration of the car at segment C is -30 meter per second squared. Hence the option B is the correct option.

<h3>Given information-</h3>

Segment A runs from 0 seconds 0 meters per second to 1 seconds 30 meters per second.

Segment B runs to 3 seconds 30 meters per second.

Segment C runs to 6 seconds 10 meters per second.

Segment D runs to 7 seconds 10 meters per second.

Segment E runs to 10 seconds 20 meters per second.

<h3>Acceleration</h3>

Acceleration is the change in velocity with respect to the time. Acceleration of a vector quantity which means it has both magnitude and the direction. It can be given as,

$a=\dfrac{\Delta v}{\Delta t}$