Answer:
oh i dont know :0
Step-by-step explanation:
1:-
0.25



- q not equal to zero hence proved
2:-
Its Slightly false.
Counter example :-
The sum of two rational numbers is may be rational. The sum of two irrational numbers is always irrational.”
ex:-


3:-
NOTA



Complementary angles ⇒ the angles add up to 90°
∠A and ∠B are complementary ⇒ ∠A + ∠B = 90°
∠A + ∠B = 90°
Plug in the values for ∠A and ∠B:
(3x - 8) + (5x + 10) = 90
Open the brackets:
3x - 8 + 5x + 10 = 90
Combine like terms:
8x + 2 = 90
Subtract 2 from both sides:
8x = 88
Divide both sides by 8:
x = 11
Answer: x = 11
12.9 = x + 7.1
subtract 7.1 from both sides to isolate the variable, x.
5.8 = x
5.8 is your answer.