Answer: Option a.
Domain: (-∞, ∞)
Range: (-∞, ∞)
Step-by-step explanation:
We have the function
Note that f(x) is the sum of two continuous functions and
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>∈ (-∞, ∞)
The answer is 18 dollars. If you subtract the $7 he earned, not originally part of his allowance, you get 9. Multiply by 2 because he spent half on the movies and you get 18.
W=3 and w=7 is the answer
Answer:
sqrt(2)
Step-by-step explanation:
bd=ab/2=2
=> bc=qrt(bd^2+dc^2)=sqrt(4+16)=2sqrt(5)