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Anettt [7]
3 years ago
9

There are 20 wild pigs on an island and the number of pigs doubled each year for the past 5 years. The independent variable is

Mathematics
2 answers:
IRINA_888 [86]3 years ago
8 0
P(t)=20(2^t)

The independent variable is time.
Archy [21]3 years ago
5 0

Answer:

The independent variable is time.

Step-by-step explanation:

Given,

The original number of pigs on the island = 20,

Also, the number of pigs doubled each year,

After 1 year the pigs = 20(2),

After 2 years = 20(2)²,

After 3 years = 20(2)³,

......................., so on...

Similarly, the number of pigs after t years would be,

y=20.2^t

⇒ The value of y depends upon t,

⇒ The number of pigs depends upon the time ( in years ),

Since, the variable in which the other variable depends is called independent variable,

Hence, the independent variable must be time.

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2 years ago
On average, a pair of bike tires can last 18 months if used every day. The length of time bike tires can last is exponentially d
aleksandr82 [10.1K]

Answer:

We conclude that eighty percent of bike tires last at most 14.4 months.

Step-by-step explanation:

We know that a pair of bike tires can last 18 months if used every day.

We calculate how much eighty percent of the tire will last in months.

We have the following proportion:

18:100\%=x:80\%\\\\100x=18\cdot 80\\\\100x=1440\\\\x=\frac{1440}{100}\\\\x=14.4

We conclude that eighty percent of bike tires last at most 14.4 months.

5 0
3 years ago
The length of the base of an isosceles triangle is x. The length of a leg is 4x - 2. The perimeter of the triangle is 95. Find x
adell [148]

Answer:

x = 11

Step-by-step explanation:

sides of triangle measure: 'x', '4x-2' and '4x-2' since isosceles means both legs are equal

perimeter is the sum of all sides, so set up equation:

95 = 4x - 2 + 4x - 2 + x

95 = 8x - 4 + x

95 = 9x - 4

99 = 9x

x = 11

5 0
3 years ago
Please help answer needed asap
Basile [38]

Answer:

A

Step-by-step explanation:

a = 3n-30       solve for 'n'

a + 30 = 3n

n = (a+30)/3

n(a) = (a+30)/3

5 0
2 years ago
The graph of a quadratic polynomial intersects x-axis at the points (-4, 0) and (5, 0). Find
Setler79 [48]

Answer:

Quadratic polynomial is x^2 - x - 20

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2 years ago
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