Answer:
(3,-3)
Step-by-step explanation:
Answer:
x=y+3
Step-by-step explanation:
you just swap variables.
Answer:
false because it only equal when b = n
Answer:
8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent.
Step-by-step explanation:
Solve addition and subtraction word problems, and add and subtract within 10.
Answer:
A. <ECF and <BCF
Step-by-step explanation:
Complementary angles are angles that add up to give 90°
m<BCE = m<BCA = 90° (right angles)
m<ECF + m<BCF = m<BCA
m<ECF + m<BCF = 90° (Substitution)
Therefore, <ECF and <BCF are complementary angles.
