This can be solved using the angle bisector theorem. Note that line segment AD is the angle bisector of triangle DAB from angle DAB. Therefore, we know that the ratios 
and 
are equal. Solving, we get 
. Cross multiplying, we get 
, and solving this equation we get 
. 10.2 is your answer.
Rewrite this expression with grouping symbols 3a -3
1 answer:
Answer:
The expression with grouping symbols is,
Step-by-step explanation:
Grouping symbols are used to show what should be done first in the math expression.
Parentheses are the most common grouping symbols.
Given the expression: 3a -3
to rewrite this expression with grouping symbols:
Place the parentheses
Therefore, the expression with grouping symbols is,
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