You cannot have an answer to this because it is not an equation
Answer:
B. 
Step-by-step explanation:


(f + g)(x) = f(x) - g(x)
= 
Add like terms



Answer:
For the equation, you should subtract 2x on both sides to get -y = -2x - 4. Flip the y's negative sign to get a proper function which is y = 2x + 4. The y-intercept is at (0, 4) and each unit will move two units up along the x-axis.
The period is 5. Start at x = 0 and trace the curve until you reach the same height as when you were at x = 0 (which is y = 3). The function repeats itself over again once you get to x = 5.
The amplitude is 2.5 since it is half of the vertical distance from the peak y = 3 to the valley y = -2. This distance is 5 units, half of which is 2.5
<h2>
Answer with explanation:</h2>
Given : A random sample of five Galaxy 8 smartphones is selected from the production line after final assembly, and the result of the weight control measurement is (in grams) are :
X= 155.1, 154.8, 155.5, 155.3, and 154.6.
here, n=5
The average weight :

∴ Average weight (
)=155.06 grams
Uncertainty = Standard deviation: 


i.e. Its uncertainty : 
The fractional uncertainty = 
