If ABCD is a square, then m∠A = 90°.
Therefore we have the equation:
30° + 48° + x° = 90°
78° + x° = 90° |-78°
x° = 12°
Answer: 12
Answer:
$1.60
Step-by-step explanation:
Please see the attached pictures for full solution.
2.74 + 3.5 = 6.24
Answer
6.24
------------
- 1.5 - (-7.7)
= - 1.5 + 7.7
= 6.2
6.2