The first one is (x+10)(x-10)
Answer:
The correct option is B.
Step-by-step explanation:
The given vertices are (-4,2),(1,2),(1,-3) and (-4,-3).
Plot these point on a coordinate plate. From the graph it is noticed that the given quadrilateral is a square.
Distance formula:

Use distance formula to find the side length.


Since both consecutive sides are equal therefore it is a square.
Area of a square is

Where, a is side length.
The side length of the square is 5. So, area of ABCD is


Therefore the area of quadrilateral is 25 units square. Option B is correct.
Answer:
P = 1W
Step-by-step explanation:
The power is the work done by a force, divided by the time it needed. The work of weight, since the object is raised is equal to:
W = weight × distance = 1 × 1 = 1 Joule
W = 1 J
P = W/t = 1 J / 1 s = 1 Watt
So P = 1 Watt