Answer:
11m+5n
Step-by-step explanation:
you just add the m and or n with the numbers
tan
take 19 degree as reference angle
using tan rule
tan 19=opposite/adjacent
0.34=14/x
x=14/0.34
x=41.17
x=41.2
the answer is 16......
B
a² - b² = (a - b)(a + b)
49x² - 9 = (7x)² - 3² = (7x - 3)(7x + 3)
3x+5+37 =90
3x+42 =90
3x =90-42
3x =48
x =16
