Answer:
for 3, 4 or both?
4. is probably zero
Step-by-step explanation:
Wait is 4 a question?
Answer:
I dont have snap but i'm willing to talk...
Step-by-step explanation:
Answer:
a). y = 4.5
b) Scale factor = 
Step-by-step explanation:
a). Since, polygon Q is the scaled copy of polygon P
Both the figures will be similar.
Therefore, their corresponding sides will be proportional.

If x = 6,

y = 
y = 4.5
b). Since, polygon Q is the scaled copy of polygon P,
Polygon Q will be the image of preimage polygon P.
Scale factor = 
= 
Answer: 4 V
Step-by-step explanation:
The formula for electrical power
is:

Where:
is the water heater electrical power
is he water heater voltage
is the electrical resistance
Isolating
:


Hence:

Answer:
A
Step-by-step explanation:
What makes it a function?
If an x is unique but y can be duplicated
A is correct because the x are unique
B is incorrect because 3 is used twice
C is incorrect because -5 and -10 is used twice
D is incorrect because 20 is used twice