Answer:
13
Step-by-step explanation:
Answer:
To find all coordinates, we just need to observe the graph.
The coordinates of point C are (2c,d). From the graph, we notice that the x-coordinate of C is the same x-coordinate of V, because they are in the same vertical lines.
The coordinates of point D are (c,0). The problem states that D is a mid point, so basically its coordinate is half of point's V, which is c.
The slope of both AB and DC is d/c. The slope is the fraction between y-coordinate and x-coordinate. If you we calculate the slope of DC, we would have d as vertical coordinate and c as horizontal coordinate.
The slop of both AD and BC is -b/c-a. The slope between the points A(a,b) and D(c,0) is
Nomar's first four scores are 9 points below, 3 points above, 9 points above, and right on his desired average, for a net total of 3 points above his desired average of 82.
To maintain or improve his average of 82, Nomar needs to earn a score that is no lower than 3 points below 82. That is, he must earn 79 or higher.
Answer:
Area = 16 units²
Step-by-step explanation:
<u>Points to remember</u>
<u>Distance formula</u>
The distance between two points (x1, y1) and (x2, y2) is given by
Distance = √[(x2 - x1)² + (y2 - y1)²]
<u>To find the length and breadth of rectangle</u>
Let the points be (1, 7) , (5, 3)
Distance = √[(x2 - x1)² + (y2 - y1)²]
= √[(5 - 1)² + (3 - 7)²]
= √[(4)² + (-4)²]
= √32 = 4√2
If the points be (5, 3) , (3, 1)
Distance = √[(x2 - x1)² + (y2 - y1)²]
= √[(3 - 5)² + (1 - 3)²]
= √[(-2)² + (-2)²]
= √8 = 2√2
Length = 4√2 and breadth = 2√2
<u>To find the area of rectangle</u>
Area = Length * Breadth
= 4√2 * 2√2
= 16 units²