Use factoring to find the following quotients:
1 answer:
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We are going to denote the number of additional minutes with 
, and the total cost of the call with 
.
From PONCO, we know that they charge $1.25 for the first minute, and $0.30 for each additional minute; knowing that our additional minute is and our total cost of the call is , we can set up an equation to relate the values:
we are going to call this equation (1)
From CowBell, we know that they charge 1.40 for the first minute, and $0.25 for each additional minute. so just like before we can set up an equation to relate the values:
We are going to call this equation (2)
Since the total cost of equations (1) and (2) is the same, we can equate them to find :
We can conclude that after 3 additional minutes the cost of the calls will be the same; therefore, the correct answer is B.
From PONCO, we know that they charge $1.25 for the first minute, and $0.30 for each additional minute; knowing that our additional minute is
From CowBell, we know that they charge 1.40 for the first minute, and $0.25 for each additional minute. so just like before we can set up an equation to relate the values:
Since the total cost
We can conclude that after 3 additional minutes the cost of the calls will be the same; therefore, the correct answer is B.
Answer: The answer is (b) A constant with an exponent on it.
Step-by-step explanation: We are to select the correct statement from the given options that represents a characteristic of an exponential function.
We know that an exponential function is a function of the form
where b ≠ 0.
Here 'b' is a constant and the variable 'x' is called an exponent. Also, if b > 0, then the function shows an exponential growth and if b < 0, then the function shows an exponential decay.
Thus, an exponential function involves a constant with an exponent on it.
Thus, (b) is the correct option.