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Reptile [31]
3 years ago
6

What is the percentage change when a price of 10 pounds is decreased to 7 pounds n money

Mathematics
2 answers:
Reil [10]3 years ago
4 0

Answer:

30%

Step-by-step explanation:

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Karo-lina-s [1.5K]3 years ago
4 0

Answer

the percentage decreased by 30 percent

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Which of these values for p and a will cause the function f(x)=Pax to be an exponential growth function
vovikov84 [41]

The option are missing in the question. The options are :

A.  P = 2, a = 1

B.  $P=\frac{1}{2} ;  a =\frac{1}{3}$

C. $P=\frac{1}{2} ;  a =1$

D. P = 2, a = 3

Solution :

The given function is $f(x)= Pa^x$

So for the function to be an exponential growth, a should be a positive number and should be larger than 1. If it less than 1 or a fraction, then it is a decay. If the value of a is negative, then it would be between positive and negative alternately.

When the four option being substituted in the function, we get

A). It is a constant function since $2(1^x)=2$

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C). It is a constant function since the value of a is 1.

D). Here a = 3. So substituting, as the value of x increases by 1, the value of the function, f(x) increases by 3 times.

  $f(x)=2(3)^x$

Therefore, option (D). represents an exponential function.

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2 years ago
How do u do long division
Drupady [299]
Step 1- Set up the equation.
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