Answer:

Step-by-step explanation:
Since it's a perfect square, we can simply use the formula:

Given the perfect square expression
. Apply perfect square formula:

Knowing laws of exponent is mandatory when it comes to algebra. Recall that:

Apply laws of exponent to simplify the terms or expression:

Since there are no like-terms to do operation with (these terms have different degrees so they are not considered to be like-terms.) Therefore, the final answer is:

Answer:
Step-by-step explanation:
I really don't have explanation on this.
Why, because it's too hard to explain.
Answer:
x = 6
Step-by-step explanation:
The median is half the sum of the parallel bases , then
= 13 ( multiply both sides by 2 to clear the fraction )
12x - 46 = 26 ( add 46 to both sides )
12x = 72 ( divide both sides by 12 )
x = 6
Answer:
C. line d
Step-by-step explanation:
Two parallel lines are lines that do not meet even with continuous extension of their length. While two lines are perpendicular when they form a right angle to each other at the point where they meet.
In the given question, the only figure that would be parallel to line c is line d. Line a is not parallel to line c (since it is slightly diagonal, it would intersect line c at a point) and line B is perpendicular to line c (since it is horizontal to plane Q), same as plane Q. So that lines c and d are parallel to each other.