Answer:
Choice A is the correct answer
Step-by-step explanation:
The function is increasing in the interval from -3 inclusive to infinity which is never inclusive
Answer:

Step-by-step explanation:



Answer:
the answer is in the picture with process
- × 9x = -9x
- × +8 = -8
-9x - 2x = -11x
-8 - -10 = +2
answer = -11x +2
Total investment = $10,500
Let x = amount of first investment, and y the amount of the second investment.
First investment:
Interest rate = 9 (1/5)% = 0.092
Earned interest = 0.092x
Second investment:
Interest rate = 9% = 0.09
Earned interest = 0.09y
Total interest after one year is $957.00, therefore
0.092x + 0.09y = 957
or
1.0222x + y = 10633.33 (1)
Also,
x + y = 10500 (2)
Subtract (2) from (1).
0.0222x = 133.33
x = 6000
y = 10500 - x = 4500
Answer:
The first investment is $6,000 at 9 (1/5)% rate;
The second investment is $4,500 at 9% rate.