Answer:
C. 105
Step-by-step explanation:
<em><u>The formula for a regular polygon is:</u></em>
<em><u /></em> → p is the perimeter and a is the apothem
105
School started at 8:05 a.m. and ended at 2:40 p.m. The work below shows Erica’s calculation of the length of the school day.
1 answer:
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Answer:
x = 8
Step-by-step explanation:
Step 1: Subtract 5x from both sides.
Step 2: Add 2 to both sides.
Step 3: Divide both sides by 2.
Step 4: Check if solution is correct.
Therefore, x = 8.
Answer:
C.
Step-by-step explanation:
=
= Since
= So, It becomes :
=