10 Pts + Brainliest for the best answer
2 answers:
Answer:
x=-5
Step-by-step explanation:
ABN + NBC = ABC
ABN = x+85 NBC = x+105 ABC = 180
Substituting these in
x+85 + x+105 = 180
Combine like terms
2x +190=108
Subtract 190 from each side
2x+190-190=180-190
2x = -10
Divide by 2
2x/2 = -10/2
x=-5
m∠ABC = m∠ABN + m∠NBC
We have m∠ABC = 180°, m∠ABN = x + 85 and m∠NBC = x + 105. substitute:
180 = (x + 85) + (x + 105)
180 = (x + x) + (85 + 105)
180 = 2x + 190 <em>subtract 190 from both sides</em>
-10 = 2x <em>divide both sides by 2</em>
-5 = x
<h3>
Answer: x = -5</h3>
You might be interested in
Answer: it is the 4 one
Step-by-step explanation:
Answer:
sorry i dont understand you
Step-by-step explanation:
Population mean = (7+8+6+6+6+4+4+1+2+7+6+1+1+1+3+3+5+4+5+7) / 20 = 87/20 = 4.35 <==
sample mean = (4+5+7) / 3 = 16/3 = 5.33 <==
Answer:
The answer is D I hope it true
Step-by-step explanation:
Answer:
25.5
Step-by-step explanation:
A=(hbb)/2=(3·3)/2=4.5 A = Triangle
B= 5x6= 30 B = Square
B-A= Answer!
30-4.5 = 25.5