Answer:(9y-7)(9y+7)
Step-by-step explanation:
81y^2-49
=(9y)^2-(7)^2
=(9y-7)(9y+7)
Answer:
Yes because the 1st and 3rd one are functions
Step-by-step explanation:
Answer:
31
Step-by-step explanation:
If the dice is only rolled once, the possibility of getting less than7 is100%
Answer:
D. x=3
Step-by-step explanation: