Answer:
x>90
Step-by-step explanation:
x/3>30
(x/3)*3>30*3
x>90
So you plug (-3,7) into the equation and solve it, the answer is (-5,1)
Answer:
C
Step-by-step explanation:
r (x) = y = 0 when x = 14 or x = -6
Answer:
Germany mean: 1.8888888888889
Italy mean: 1.8375
Step-by-step explanation:
Have a nice day!
Answer:
(a) √25 rational
(b) √30 irrational
Step-by-step explanation:
Note : only perfect squares have rational roots
25 = 5² then 25 is a perfect square
therefore √25 = 5 is a rational number
30 cannot be written in the form a² where ‘a’ I start a natural number then 30 is not a perfect square
Therefore √30 is irrational.
