F(x) = √(5x + 7)
g(x) = √(5x - 7)
(f + g)(x) = f(x) + g(x)
(f + g)(x) = √(5x + 7) + √(5x - 7)
Answer: C)
Answer:
(0, -7)
Step-by-step explanation:
The y-intercept is the point on the line where x = 0 (AKA where the line crosses the y-axis).
Here, the y-intercept is literally given within the question as (0, -7).
Answer:
dư 0... 7^300 chia 7 đc 7^299 mà
Answer:
11 years old
Step-by-step explanation:
If four brothers have the average age 6, then the sum of their ages is
years.
Let x years be the age of sister. If four brothers and their sister have the average age 7, then
Multiply this equation by 5:
The sister is 11 years old.
You can do subtract half of 4 which is 2 and multiply by 2 by 7 so it will be 2x14 which is the same thing as 7x4<span />
