Answer: Option a.
Domain: (-∞, ∞)
Range: (-∞, ∞)
Step-by-step explanation:
We have the function ![f(x) = 2x + cosx](https://tex.z-dn.net/?f=f%28x%29%20%3D%202x%20%2B%20cosx)
Note that f(x) is the sum of two continuous functions
and ![g(x) = cosx](https://tex.z-dn.net/?f=g%28x%29%20%3D%20cosx)
The domain and range of h(x) are all real numbers
The domain of g(x) is all real numbers. The range of g(x) is [-1, 1]
Then the domain of
will be <u>the intersection</u> of the domains of the function
and the function
.
Therefore <u>the domain of f(x) are all real numbers</u>. x ∈ (-∞, ∞)
The range of f(x) will be equal to<u> the union</u> of the range of g(x) and h(x)
Therefore <u>the range will be all real numbers f(x) </u>∈ (-∞, ∞)
Answer:
50ºF
Step-by-step explanation:
(10°C × 9/5) + 32 = 50°F
Answer:
100a^2b^2
Step-by-step explanation:
square -10, a and b just get squared seperately
the next customer spends £17.55
what is this rounder to the nearest pounds? £
Answer:
£17.55 ≈ £18
Answer:
150
Step-by-step explanation:
(5)(3)=15
(1)(10)=10
15*10=150