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Amiraneli [1.4K]
3 years ago
14

Which equations model exponential growth?

Mathematics
2 answers:
elena-s [515]3 years ago
8 0
P = A(1+r)^x

where P is the population at time x
A is the initial population and r is the growth/decay rate. Growth will be +positive r number added to the 1. Where as decay subtracts r. So any answers that are > than 1 which is answers  A and B.
Gnesinka [82]3 years ago
3 0

Answer:

y=2(0.20)*       y=0.55(0.91)*

Step-by-step explanation:

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I am totally confused trying to help my son, on this problem
sladkih [1.3K]

Answer: x=4

Step-by-step explanation: You have to distribute the negative signs

x - (4x-7)= 5x-(x+21)

x - 4x + 7 = 5x - x - 21

- 3x + 7 = 4x - 21

28 = 7x

X = 4

5 0
3 years ago
Show the steps you used to solve<br> 4x + 2y = 8<br> 5x - 3y = 4
Mekhanik [1.2K]

Answer:

-0.2

Step-by-step explanation:

Simplifying

5x = 3y + -4

Reorder the terms:

5x = -4 + 3y

Solving

5x = -4 + 3y

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '5'.

x = -0.8 + 0.6y

Simplifying

x = -0.8 + 0.6y

6 0
4 years ago
Who know this answer
Ray Of Light [21]

x=12,y=12√3

sin60=y/24

√3/2×24=y

y=12√3

again

24^2=x^2+y^2

576=x²+12×12×3

x²=576-432

x=√144

x=12

5 0
3 years ago
Mariah is an artist. She sets a goal to paint 2 pieces every month. She has already painted 5 pieces. The number of pieces Maria
lawyer [7]

Answer:

2.5 months

Step-by-step explanation:

2 paintings in 1 month

4 paintings in 2 months

5 paintings in 2.5 months

3 0
3 years ago
Read 2 more answers
(1 point
professor190 [17]

Answer:

1 inch = 4 feet

Step-by-step explanation:

\frac{2 inches}{8 feet} = \frac{1 inch}{4 feet}

If we divide the given numbers by two (dividing on both sides keeps the equation true), we get 1 inch/4 feet. This tells us that on the scale, one inch is representative of four feet.

3 0
3 years ago
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