Answer:
If you mean 4x-x=(x+4), x= 2
Step-by-step explanation:
A
The projection of vector B on unit vector a is
(B•a)a
av(unit vector of v)= 1/√2(-1,1)
u•av= 1/√2 × (-5+7)= √2
(u•av)av= √2 × 1/√2(-1,1)= (-1,1)
4
she can use all 63 beads because 67 divided by 9 is 7 remainder 4
1/2 * ( 9 * 6 * 10)
1/2 * 540
270
