So for this problem, we will be using the exponential equation format, which is y = ab^x. The a variable is the initial value, and the b variable is the growth/decay.
Since our touchscreen starts off at a value of 1200, that will be our a variable.
Since the touchscreen is decaying in value by 25%, subtract 0.25 (25% in decimal form) from 1 to get 0.75. 0.75 is going to be your b variable.
In this case, time is our independent variable. Since we want to know the value 3 years from now, 3 is the x variable.
Using our info above, we can solve for y, which is the cost after x years.
In context, after 3 years the touchscreen will only be worth $506.
Answer:
95 intervals
Step-by-step explanation:
Given that
population mean = 100
standard deviation = 15
number of interval that involve the mean for 95% confidence interval is calculated as
We know that when we measure the 99 percent confidence interval, 99 outof 100 confidence interval are required to provide the mean population.
similarly
Assuming we measure a confidence interval of 95 percent, then we should expect 95 out of 100 confidence interval to provide the mean population therefore, answer is 95
We are asked to sum the two trinomials
. We can start by using the distributive property to remove the parenthesis, giving us
. Next, when we combine like terms, we get
. Hope this helped!
Answer:
(a) 
--- The function
(b) 
--- The salary in 5 years
Step-by-step explanation:
Given
Solving (a): Model the function around (1,24100) and (3,36600)
First, we calculate the slope
The function is then calculated as:
Solving (b): Salary in 5 years
Here:
So:
Answer:
The answer I believe is -185 1/7
Step-by-step explanation:
I followed PEMDAS.
