-6g + 36 = 12
36 = 12 + 6g
24 = 6g
4 = g
g = 4
Answer:
8 years old
Step-by-step explanation:
oldest= 16
8+12+15+16= 51
51/4 = 12.73 ( average)
Answer:
Step-by-step explanation:
(3x -2) - (4x +1)
= 3x - 2 - 4x - 1
= - x - 3
Answer:
6. (a-4)(a+9)
7. (3p+4)(p-2)
8. Will explain below.
9. (5b+4)(5b-4)
Step-by-step explanation:
HELLOOO IM BACK
6. -4*9 = -36 (the variable), 9-4 = 5 (a) , so a^2 +5a - 36 is fulfilled.
7. 4*-2 = -8, 4-2 = 2, so 3p^2 - 2p - 8 is fulfilled.
9. 25b^2 = (5b)^2
16 = 4^2
Using the difference of squares formula, a^2-b^2= (a+b)(a-b)
Answer: a²= b²+c²
Step-by-step explanation:
Pythagorean theorem states the sum of the square of the other sides of Right angled triangle equals to the square of the longest side (hypotenus) of such triangle