Answer:
15
Step-by-step explanation:
a²+20²=25²
a²=625-400
a²=225
a=15
Answer:
52 / 8 = 6 with a remainder of 4
Step-by-step explanation:
Answer:
57+132+96 = 285
360-285= 75
B = 75
Step-by-step explanation:
Answer:
5 years older
Step-by-step explanation
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Answer:
∠D = 125° and ∠C = 55°
Step-by-step explanation:
We should first solve for variable x, which should give us angle C, and then solve for angle D.
Thus ∠C = 55°
Knowing that supplementary angles add to 180°, we set up the equation:

°
Thus ∠D = 125°