Step-by-step explanation:
Use triangle congruency:
BC=EC, AC=DC - Given
m∠DCE = m∠ACB because they are vertical angles
Therefore ΔABC ≅ ΔDEC because of Side-Angle-Side congruency
AB=DE because corresponding parts of congruent triangles are also congruent (CPCTC)
If he does three hours, its 9 strips, for four, its 12, six is 18, seven is 21, and nine is 27
Answer:
x=5
Step-by-step explanation:
esa es la respuesta correcta
Answer:
x = 7
Step-by-step explanation:
5x-4 = 31
5x = 31+4
5x = 35
x = 7
3, assuming 2x2 is 2x squared, u will get
4 + 6x3 - 10x2
So 3 terms