![subject](/tpl/images/cats/mat.png)
Mathematics, 08.06.2020 06:57 alwaysneedhelp84
If m∠abc = 80°, what is m∠dbc? justify your reasoning.
a) using the angle addition postulate, 20 + m∠doc = 80. so, m∠doc = 60° using the subtraction property of equality.
b) using the angle addition postulate, 20 + 80 = m∠dbc. so, m∠doc = 100° using the addition property of equality.
c) using the addition property of equality, 20 + 80 = 100, so m∠doc = 100°.
d) using the subtraction property of equality, 80 − 20 = 60, so m∠doc = 60°.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:00
Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00
Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30
The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)
Answers: 1
You know the right answer?
If m∠abc = 80°, what is m∠dbc? justify your reasoning.
a) using the angle addition postulate, 20 +...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 01.12.2019 17:31
![question](/tpl/images/cats/istoriya.png)
History, 01.12.2019 17:31
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.12.2019 17:31
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.12.2019 17:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.12.2019 17:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 01.12.2019 17:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 01.12.2019 17:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.12.2019 17:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)