Answer:
D
Step-by-step explanation:
Given that the segment is an angle bisector then the ratio of sides and base are equal, that is
=
( cross- multiply )
10x = 72 ( divide both sides by 10 )
x = 7.2 → D
Answer:
86
Step-by-step explanation:
The average is the sum of all the grades divided by the number of tests.
83.8 = (84 + 79 + 82 + 88 + x) / 5
419 = 333 + x
x = 86
Answer:
Step-by-step explanation:
estimation is about -3 
Answer:
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Answer:
a, each number can be divided by a