Answer:
1.8
-2.2
1.8
-2.2
-1.8
-1.8
2.2
2.2
Step-by-step explanation:
Right or above 0 are positive
Left or below 0 are negative
Answer:
A cube has 6 equal faces, 8 vertices, and 12 edges.
Step-by-step explanation:
My answer is self-explanatory.
39 hours, 13 minutes and 50 seconds
Answer:
36 ounces
Step-by-step explanation:
9 x 4 = 36
Answer:
Step-by-step explanation:
hello :
sin(x+y)= sinxcosy+cosxsiny...(*)
sin(x-y)= sinxcosy-cosxsiny....(**)
add (*) and(**) : sin(x+y)+sin(x-y)= 2sinxcosy
1/2(sin(x+y)+sin(x-y)) = sinxcosy......true