108 !! ye i’m sorry mate i suck at maths
Answer:
Step-by-step explanation:
- 9x² - 25 = 0
- 9x² = 25
- x² = 25/9
- x = √25/9
- x = ± 5/3
Correct choice is A
Answer:
1000 families
794 =radio
187=tv
63 =none
794 + 187 +63
=1044
1044-1000
=44 families
Step-by-step explanation:
Answer:
Its Option C.
Step-by-step explanation:
-4x + 7 = 2y - 3
Substitute the given values in the given equation:-
(2,1):- -4(2) + 7 = -1 and 2(1) - 3 = -1 so (2,1) is a solution.
(5, -5):- -4(5) + 7 = -13 and 2(-5) - 3 = -13 so (5, -5) is also a solution.
Answer:
x = 0, y = -2
Step-by-step explanation:
-3x - 4y = 8 (1)
-4x - 3y=6 (2)
Multiply (1) by -4 and (2) by -3, we have:
12x + 16y = - 32 (3)
12x + 9y= -18 (4)
Subtract (4) from (3), we have:
(12x + 16y) - (12x + 9y) = - 32 - (-18)
<=> 7y = - 14
=> y = - 2
Replace y with - 2 in (3), we have x = 0
