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dlinn [17]
4 years ago
14

Let f(x)=15/(1+4e^(-0.2x)

Mathematics
1 answer:
Anit [1.1K]4 years ago
6 0
The interval of growth rate can be seen in the graph below


The answer is (-∞, ln(4)/0.2) =  (-∞, 6.9314)


(As x goes to infinity f(x) goes to 15)


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Mildred bought 2-cent stamps, 4-cent stamps, and 5-cent stamps for $4.35. The number of 2-cent stamps exceeded the number of 5 c
vfiekz [6]

5 cent = 0.05x

<span><span>2 cent  </span>= 0.02(x+50)</span>

4 cent = 0.04(2x-10)

 

0.05x + 0.02(x+50) + 0.04(2x-10)

0.05x + 0.02x +1 + 0.08x -0.4 = 4.35

0.15x +0.6 = 4.35

0.15x = 3.75

X = 3.75 / 0.15 = 25

<span> 25 5 cent stamps ( 25*0.05 = 1.25)</span>

25+50 = 75 2 cent stamps ( 75*0.02 = 1.50)

2*25 =50-10 = 40 4 cent stamps ( 40*0.04 =1.60)

 

1.25 + 1.50 +1.60 = 4.35

5 cent = 25

2 cent = 75

4 cent = 40


8 0
3 years ago
Simplify the following expresion. Classify the resulting polynomial 4x(x+1)-(3x-8)(x+4) A) quadratic monomial B) quadratic trino
lana66690 [7]

Answer:

Quadratic binomial

Step-by-step explanation:

4x(x+1) - (3x-8)(x+4)

Open parenthesis

(4x^2+4x) - (3x^2+12x-8x-32)

(4x^2+4x - 3x^2-12x+8x+32)

Collect like terms

4x^2-3x^2+4x+8x-12x+32

=x^2+32

Quadratic binomial

6 0
3 years ago
Siena draws a map of her flower garden. She wants to plant roses 6 feet away from the marigolds and 5 feet away from the lavende
lyudmila [28]

(-3 , 2)

(3 , -2)

(-2 , 3)

(2 , -3)

Its one of these but idk witch one sry bout that

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3 years ago
Your grade point average is 3.48. How can you write your grade point average as a fraction?
Colt1911 [192]

Answer:

87/25

Step-by-step explanation:

looked it up hope it helps

8 0
3 years ago
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Identify whether the following equation has a unique solution, no solution, or infinitely many solutions.
baherus [9]
The answer is in the question
4 0
3 years ago
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