Answer:
The graph is nor a function og x because tha like y=0 intersects the graph at two points
 
        
             
        
        
        
The radius of the circle is 15 cm,
The diameter of the circle is 30 cm,
The circumference of the circle is 94.248 cm, 
The area of the circle is 706.86 cm^2
The radius is given in the diagram as half the circle, which is 15 cm.
The diameter is double the radius because the diameter measures the circle from edge to edge, so 15•2=30 cm.
The circumference of the circle is 2•3.14•r=C,
2•3.14=6.28, 6.28•15= 94.248 cm.
The area of the circle is 3.14•r^2, so the radius squared is 225 (15•15) and 225•3.14=706.86 cm squared :)
        
             
        
        
        
Answer:
24 foot 
Step-by-step explanation:
We are given that 
Length of ladder=26 foot
Height of building=10 foot
We have to find the distance between the bottom of ladder and the bottom of building.
Pythagorus theorem: 

We have hypotenuse =AC=26 foot 
Perpendicular side =AB=10 foot
Base=BC
Substitute the values in the given formula 



 (Take positive because length is always positive)
 (Take positive because length is always positive)
BC=24 foot 
Hence, the bottom of the ladder will be 24 foot  from the bottom of the building.
 
        
             
        
        
        
Answer:
V = 2304π units³
Step-by-step explanation:
The volume (V) of a sphere is calculated as
V =  πr³ ( where r is the radius ) , then
πr³ ( where r is the radius ) , then
V =  π × 12³
π × 12³
    =  π × 1728
 π × 1728
    = 4π × 576
    = 2304π units³