Answer:
x ∈ (-∞ , -2) ∪ (1, 3)
Step-by-step explanation:
The expression is already factored. Note that for the polynomial that appears in the numerator 
there are 2 roots:
For the polynomial that appears in the denominator there is 1 root:
Note that does not belong to the domain of f(x) because it zeroes the denominator of the function and the division between zero is not defined.
With these three roots we do the study of signs to find out when 
Observe the attached image
Note that:
when 
when 
when 
Finally, we have the solution:
x ∈ (-∞ , -2) ∪ (1, 3)
Answer:
Step-by-step explanation:
We have pairs (5, 2550) and (8, 3300)
<u>Find the rate of change:</u>
- (3300 - 2550)/(8 - 5) =
- 750/3 =
- 250
$250 is the amount added to savings account every month
<u>Initial amount was:</u>
- 2550 - 5*250 =
- 2550 - 1250 =
- 1300
<u>Since the change is linear and we have y-intercept and slope, we can show the amount after x months as:</u>
Answer:
$672
Step-by-step explanation:
First find the area so:
5*4=20ft
2^2*3.14=12.56ft
20+12.56=32.56ft
Second find the price for the area:
32.56*12=$672
Hopefully it's correct!
1 x 19 = 19
2 x 9.5 = 19
4 x 4.75 = 19
