Answer/Step-by-step Explanation:
4. Midpoint (M) of AB, for A(-2, -3) and B(1, 2) is given as:

Let 

Thus:


5. Given M(3, 5) as midpoint of CD, and C(-1, -1),
let 


Rewrite the equation to find the coordinates of D
and 
Solve for each:












Coordinates of D is (7, 11)
Answer:
y= -4x+7
Step-by-step explanation:
The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.
Let's find the gradient of the line first.

Using the above formula,

Susbt. m= -4 into the equation:
y= -4x +c
Subst. a coordinate to find c.
When x=3, y= -5,
-5= -4(3) +c
-5= -12 +c
c= 12 -5
c=7
Thus the equation of the line is y= -4x +7.
<h3>
Step-by-step explanation:</h3>
Quadrilateral are four sided shapes. e.g
There are 2 sides in a quadrilateral and each of them are 180° shown above. Angles in a quadrilateral add up to 360°.
For example: The example is shown in the picture above.
Divide 28 by 3 and count how many are left over.
28 / 3 = 9 1/3
So each boy had 9 toy cars, and because you can't have 1/3 cars, you round 1/3 to 1. So there was 1 left over car.
Answer:
She can make 13 flags
Step-by-step explanation:
40 5/6 divided by 3 1/8
245/6 divided by 25/8
245/6 x 8/25
Use cancellation for a more simplified result
49/6 x 8/5
49/3 x 4/5 = 196/15 = 13 1/15
She can make 13 flags