Answer:
A graphing calculator can do quadratic regression on the given points. It tells you the cost function is
.. c(x) = (1/2)x^2 +8x +10
Then c(12) = 178
The cost function predicts the total cost of producing 12 camera cases is $178.
Step-by-step explanation:
<3 follow
-1/2(x + 2) + 11/2 + x = 3
-1/2x - 1 + 11/2 + x = 3
1/2x + 9/2 = 3
1/2x = 3 - 9/2 = -3/2
x = -3/2 * 2 = -3
x = -3
Answer:
Option A - The number of visitors is multiplied by (1+r) each year
Step-by-step explanation:
Given : The number of visitors to an art museum increases each year. The function 
represents the number of visitors to the museum at year t, where N is the number of visitors in year 0 and r is the rate of increase.
To find : Select the correct statement?
Solution :
We have given an exponential function,
The function represents the number of visitors to the museum at year t, where N is the number of visitors in year 0 and r is the rate of increase.
As In year 0,
The initial visitors is 
In year 1,
In year 2,
So, According to this the number of visors is multiplied by (1+r) each year.
Therefore, Option A is correct.
The answer is 3x(-12) I 'am 100% show..
Answer:
(Sorry, I only remember how to do 1 through 7)
1. -8.86
2. 17.5
3. -6.12
4. 1.66
5. 11/24
6. 4/5
7. 14
Step-by-step explanation:
1. -5.51-3.35=-8.86
2. -59.5/-3.4=17.5
3.0.85*-7.2=-6.12
4. -0.59+2.25=1.66 (The double negatives become positive)
5. 3/8+ 1/12=11/24
6. (-24/25)/(-6/5)=4/5
7. 28/2=14
