After proving two triangles are congruent, then one can prove parts of a triangle are congruent using the reasoning CPCTC.
1 answer:
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Answer:
At least 1.72 miles per day.
Step-by-step explanation:
Given: Goal of running is at least 50 miles in a month.
Andrea have already run 7 miles.
Days left in the month is 25.
As given, Andrea have already run 7 miles.
∴ Andrea need to run this month=
Days remaining this month is 25.
Now, finding miles need to run each day to meet her goal.
Miles need to run each day=
⇒ Miles need to run each day=
∴ Andrea need to run at least 1.72 miles to meet her goal this month.
+ √6 = √9
The first step is to get by itself. We can do this by subtracting
from each side, and simplifying
= 3 -
Now we square both sides
5x = (3 - )²
Using the formula (a - b)² = a² -2ab + b², (3 - )² = 15 - 6
5x = 15 - 6
x =