Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
The price p, in dollars, of a specific car that is x year old is modeled by the function p(x)=22,255(0.91)^x
a) to determine the cost of a 2 year old car, we will substitute 2 for x in the given function. Therefore
p(2)=22,255(0.91)^2
p(2)=22,255 × 0.8281 = $18673.655
Approximately $18674
b) to determine the cost of a 7 year old car, we will substitute 7 for x in the given function. Therefore
p(7)=22,255(0.91)^7
p(2)=22,255 × 0.51676101936 = 11500.51648579693
Approximately $11501
c) 0.91 indicates exponential decay rate. It is a fixed percentage by which the value of the car decreases every year. It is determined by (1 - rate of decay)
Answer:
y=3
Step-by-step explanation:
The y values are the same, so there cannot be a slope. The (mx) part of y=mx+b is cancelled out, and is left with the b. Since the y value is forever three, the y-intercept will be 3 as well.
Therefore, the slope-intercept equation is
y=3
Answer:
The solution of the given set in interval form is ![$(-\infty,-4] \cup[12, \infty)$](https://tex.z-dn.net/?f=%24%28-%5Cinfty%2C-4%5D%20%5Ccup%5B12%2C%20%5Cinfty%29%24)
.
Step-by-step explanation:
It is given in the question an inequality as 
.
It is required to determine the solution of the inequality.
To determine the solution of the inequality, solve the inequality 
and, 
Step 1 of 2
Solve the inequality
Solve the inequality .
Step 2 of 2
The common solution from the above two solutions is x less than -4 and 
.
The solution set in terms of interval is .
X=-1 and y=5
As when u replace the values x will give you negative 1 and when u replace negative 1 in y=-5x you get 5
