Find the domain and range of the real-valued function f(x) = x2 + 7. B) The domain is all real numbers x such that x ≥ 0 and the range is all real numbers f(x) such that f(x) ≥ 7. C) The domain is all real numbers x such that x ≥ 0 and the range is all real numbers.
Answer:

Step-by-step explanation:
The terms of the arithmetic sequence are...
-15, -6, 3, 12, ...
The first term is
a_1=-15
The common difference is

The equation for the nth term is given by;

We substitute the values into the formula to get;

Answer:
(0,-2)
Step-by-step explanation:
Answer:
x=33
Step-by-step explanation:
1) write the equation: 180=90+(x+15)+(x+9)
2) subtract 90 on both sides and add x+15 and x+9 together: 90=2x+24
3) subtract 24 from both sides: 66=2x
4) divide both sides by 2: x=33