Answer:
4
4z+4
Divide each term of 4z+4 by 4 to get 1+z.
1+z
Im just about to work one out for you and you just do the same on the rest
Answer:
C
Step-by-step explanation:
A net is formed when the surfaces of a given shape is laid flat on a horizontal plane. And on folding it with respect to its edges, the initial shape is reproduced with no distortion or loss.
From the given question, the net that would not produce a cube is that of option C.
Answer:
Option 2: 
Step-by-step explanation:
Given:
From the triangle shown below;
A triangle QRS with angle QRS = 90°, ∠QSR = 30°.
Side QR = 5, SQ = 10 and RS = 5√3
Now, we know from trigonometric ratio that,

Here, opposite side of angle QSR is QR and Hypotenuse is the side opposite angle QRS which is SQ. Therefore,

Therefore, the value of sine of 30° is one-half. So, second option is correct.
Step-by-step explanation:
2m+m=10+8
3m=18 /3
M=6