Answer:
a d
Step-by-step explanation:
yes:x+7=18
no:2x+7=36
x+14=36
not enough info:(2×x)+(2×7)=36
2 (x+7)=72
12
Step-by-step explanation:
because i,j,k are the unit vectors of x y and z axis and the vector having same unit vector can only be multiply or divide
Answer:
Step-by-step explanation:
( 3x - 7 )° + ( 9x - 2 )° + ( x + 7 )° = 180°
13x = 182
x = 14
m ∠ A = ( 3 × 14 - 7 )° = 35°
m ∠ B = ( 9 × 14 - 2 )° = 124°
m ∠ C = ( 14 + 7 )° = 21°