Answer: Part one (NEGATIVE) Part two is C (EVEN DEGREES OF FOUR OR GREATER) 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
5x-6
Step-by-step explanation:
 f(x) = 2x + 3 
 g(x) = 3x - 9
f(x) + g(x) = 2x + 3  + 3x-9
                = 5x-6
 
        
             
        
        
        
Answer:
Step-by-step explanation:
The line connecting the center with the end of the walkway is radius and is the hypotenuse of the right triangle.
Horizontal leg is the distance x.
<u>Vertical leg has the length:</u>
<u>Using Pythagorean theorem to find the length of x:</u>
- x² = (250/2)² - 63²
- x² = 125² - 63²
- x² = 11656
- x = √11656
- x = 107.96 ≈ 108 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
The first composite shape is a combination of a rectangular prism and a pyramid. To find the volume of the entire shape you find the volume of each individual shape and add them together. The second figure consists of a cylinder and a hemisphere.