Answer:
1. 180° ∑triangle angles=180°
2. 2x
3. 52°
Answer:
49x^2 - 9 = 0As there is no x term, we can pretty much guess we have a situation where we factlrise by something known aa difference of two squares, so to factorise it:49 = 7^29 = 3^2x^2 = (x)^2so...(7x - 3)(7x + 3) = 07x - 3 = 0 7x + 3 = 0x = 3/7 x = -3/7
Step-by-step explanation:
This is my work and only part 1
Answer: -6
if a=1 then -48a=-48
so when we divide by 8 we ger -48/8 which is -6
Answer:what am I doing
Step-by-step explanation:
