Answer:
d
Step-by-step explanation:
the sun is the primary source
Answer:

Step-by-step explanation:
Given



Required
Find x
If
i.e. If AB is parallel to CD, then

Substitute values for ABC and BCD

Collect Like Terms


Multiply through by 





Answer:
Step-by-step explanation:
y - 7 = -4(x - 0)
y - 7 = -4x + 0
y = -4x + 7
Try this solution:
D(f): √(2-x)≥0; ⇔ 2-x≥0; ⇔ x≤2 or x∈(-∞; 2].