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Kruka [31]
3 years ago
9

Over time, the number of organisms in a population increases exponentially. The table below shows the approximate number of

Mathematics
2 answers:
Sphinxa [80]3 years ago
6 0

Answer:

We write the generic form equation:

 y = A (b) ^ t

 We must use two points in the table to find the constants A and b

 We have then:

 For: t = 1, y = 55

 55 = A (b)

 For: t = 2, y = 60

 60 = A (b) ^ 2

 We solve the system of equations:

 We divide both equations:

 (60 = A (b) ^ 2) / (55 = A (b))

 ((60) / (55)) = b

 b = 1.091

 We substitute in any of the equations:

 55 = A (b)

 55 = A (1,091)

 A = (55) / (1,091)

 A = 50.41 

 The equation that models the problem is:

 y = 50.41 * (1.09) ^ t

 For t = 29 we have:

 y = 613.5996987 (> 600)

 Answer:

 Assuming the trend continues the environment will not last until the population after 24 years.

 Answer:

  24

vlada-n [284]3 years ago
5 0

Answer:

24

Step-by-step explanation:

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Step-by-step explanation:

given cost price=$86

discount on black friday=45%

selling price=cost price(1-discount%)

selling price=86(1-\frac{45}{100})

selling price=86(\frac{55}{100})

selling price=$47.3

saving amount=$86-$47.3=$38.7

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3 years ago
Need help finding the slope line through each pair ​
Kay [80]

Answer:

9) -25/21

11) 14

Step-by-step explanation:

In each case, subtract the y-coordinates. Subtract the x-coordinates in the same order. Divide the difference in y by the difference in x.

9)

y-coordinates: -10 - 15 = -25

x-coordinates = 6 - (-15) = 21

slope = (difference in y)/(difference in x) = -25/21

11)

y-coordinates: -20 - 8 = -28

x-coordinates = 3 - 5 = -2

slope = (difference in y)/(difference in x) = -28/(-2) = 14

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3 years ago
A triangle has sides with lengths of 2x - 7 , 5x - 3, and 2x - 2. What is the Length of the triangle
mestny [16]
From my math it should be 12
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Michelle buys a rug for $36 and sells it for $90. What was the value of her markup, expressed as a percent?
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4 years ago
Read 2 more answers
Using a 16-sided number cube, what is the probability that you will roll a multiple of 4 or an odd prime number? The number 1 is
iogann1982 [59]
<h3>Answer: 0.563 (choice C)</h3>

================================================

Explanation:

E = event space

E = set of outcomes we want to happen

E = rolling a multiple of 4 or rolling an odd prime number

E = {4,8,12,16     3,5,7,11,13}

n(E) = number of items in set E

n(E) = 9, (four multiples of 16+five ways to roll odd prime number)

-----

S = sample space

S = set of all possible outcomes (whether we want them to happen or not)

S = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}

n(S) = number of items in set S

n(S) = 16

-----

P(E) = probability of event space occurring

P(E) = probability of rolling a multiple of 4 or rolling an odd prime number

P(E) = n(E)/n(S)

P(E) = 9/16

P(E) = 0.5625

P(E) = 0.563

3 0
3 years ago
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