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Nat2105 [25]
3 years ago
13

A certain quantity decays exponentially over time. The initial quantity at t = 0 is 25,000. The quantity decays at a rate of 5%.

What is the quantity at t = 3?
Mathematics
2 answers:
7nadin3 [17]3 years ago
3 0
In order to sole the problem you need to create an equation to model what you are trying to do.
You end up with an equation looking like
25000*0.95^t
25000 is the starting value when t=0
95% is the amount remaining after the 5% decay
0.95 is being raised to the power of t to determine how many times it has decayed
When t=3 the equation should be
25000*0.95^3=21434.375
pychu [463]3 years ago
3 0

Answer:

its b on edg

Step-by-step explanation:

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Susan found the equation of the best fit line for the data shown in the scatterplot. The slope of the line of best fit is
Ivan

Answer:

Negative

Step-by-step explanation:

From the scatter plot displayed, we could clearly observe the direction of the trend line as it produces a negative slope. For high values of y, the values of x are low and similarly, high values of x have low y values. Therefore, this kind of relationship between the two variables is considered negative.

7 0
3 years ago
The sum of two numbers is 52. The larger number is 8 more than the smaller number. What are the numbers?
iVinArrow [24]

Answer:

The smaller number is 22

The larger number is 30

Step-by-step explanation:

L + S = 52

L = S + 8

Set both equations equal to L.

S + 8 = -S + 52

+S        +S

2S + 8 = 52

     - 8    - 8

2S = 44

S = 22

To find the larger number, plug 22 in as S into the equations.

L = 30

3 0
3 years ago
One number is 9 more than another. if the sum of the two numbers is 171, find the two numbers
allochka39001 [22]
Let x be the 1st number
x + 9 be the second number

Equation:
x + x+9 = 171

Solution:
2x + 9 = 171
2x = 171 - 9
2x = 162
x = 81
x + 9 = 90

81 + 90 = 171
4 0
3 years ago
What is an equation in point-slope form of the line that passes through the point (4,4) and has a slope of -5?
Nastasia [14]
(y - 4) = -5 (x - 4)
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3 years ago
1.
4vir4ik [10]
The answer would be, 325mg is 32.5 cg
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