Answer:
Combine points A with C and A with B. Consider ΔABD and ΔACD:
1. AD is common side, then AD\cong AD;
2. CD\cong BD - given in the diagram;
3. \angle ADB\cong \angle ADC .
By SAS Postulate, \triangle ABD\cong \triangle ACD . Congruent triangles have congruent corresponding sides and congruent corresponding angles, so AC\cong AB .
From this proof you can see that correct choice is option D (In triangles ABD and ACD, two sides and an included angle are equal.)
Step-by-step explanation:
Answer:
20%
Step-by-step explanation:
100mL is the same has 100 grams. Therefore 20 grams of a 100 gram solution would be 20% of the solution.
Answer:
x<4
Step-by-step explanation:
The graph is not ending therefore X can be only lower than 4. -4 wouldn't be considered to be in the answer as it is a value of x itself. Also, X can't be greater than 4 because 4 is the starting point of the graph. So the X is always lower than 4 and can equal -4. So it would be x<4.
hope that helps!
Answer:
2.5 per minute
Step-by-step explanation:
:)
