Answer:
X = 23
Step-by-step explanation:
oppsosite angles are equal so the brackets equal 90 degrees like the right angle opposite.
90-21 = 69
69 / 3 = 23
x = 23
Answer:
(b-3)(b+3)
Step-by-step explanation:
b^2+3b-3b-9
Answer:
A. 5-log3 (2)
Step-by-step explanation: