Answer:
A "sample" from a population is a small group of poeple chosen, such as 200 people is a sample of people chosen from a total of 5000
Answer:
m∠ABC=42°
Step-by-step explanation:
m∠ABD=70°
⇒m∠ABD=m∠ABC+m∠CBD
⇒70°=(3x+33°)+(5x+13°)
70°=8x+46°
70°-46°=8x
24°=8x⇒x=3°
x=3°
Then,
m∠ABC=3x+33°
put x=3°, we get
m∠ABC=3×3°+33°=9°+33°
m∠ABC=42°
Answer: I think you have to add a negative number by a positive number like -10+5
Step-by-step explanation: