Answer:
IF ABC and DEF are complementary then ABC + DEF = 90°
Therefore, DEF = 90° -ABC
Since DEF = 54° and DEF = x then
x = 90° -54°
x = 36°
Step-by-step explanation:
x = 36
Complementary angles add to 90 degrees
54+x = 90
x = 90-54
Answer: 531 inches
15
2/3 of 30 is 20, so 1/2 of 30 is 15
The numbers:
1, -3, 2, -9, 3, -15, 4, -21,
are not linear.
If it was linear:
4, 3, 2, 1, -3, -9, -15, -21
