Answer:
Step-by-step explanation:
let 7 + 3√2 be an rational number where
7+3√2 = a/b [ a and b are coprime and b is not equal to zero]
3√2= a/b-7
3√2 =( a-7b) /b
√2 = (a-7b) /3b .....(i)
Now ,from equation (i) ,we get that √2 is rational but we know that √2 is irrational. so actually 7 + 3√2 is irrational not rational. thus our assumption is wrong. The number is irrational.
Answer:
y = 4x + 2
4 is the slope and 2 is what y will be at x = 0.
Answer:
inequality 3n+5>9+n, subtract 5 from both sides to get 3n>4+n, now subtract n from both sides to get 2n>4 and divide both sides by 2 to get n>2 :)
Step-by-step explanation:
Answer:
70
Step-by-step explanation:
X^2-6x=13
(x-3)^2-9=13
(x-3)^2=22
(x-3)= +-sqrt22
x = sqrt22+3 or x = -sqrt22+3
