You know how to use addition and subtraction right? There is no difference when it has the same variable. For instance, 4 + 4 = 8, what does 4x + 4x =? 4x + 4x = 8x. You simply added an x at the end, that's all.
9 - 7 = 2
9m - 7m = 2m
2 + 2 = 4
2m + 2m = 4m
For your example, the answer is 4m because of this.
When the variables are different, for instance, 4x + 3y = 5, you would try to get it into a formula structure, but that's something else.
9514 1404 393
Answer:
(x, y) ⇒ (x -5, y +3)
Step-by-step explanation:
Pick a point on the original polygon. The extreme left point (at (1, 0)) will do.
Locate the corresponding image point on ABCDE. (It is point B(-4, 3).) Using coordinates, or counting grid squares, determine what must be added to the original point to get the image point.
Here, that addition is 5 squares left and 3 squares up:
image - original = (-4, 3) -(1, 0) = (-5, 0)
So, the transformation rule adds -5 to each x-coordinate and 3 to each y-coordinate:
(x, y) ⇒ (x -5, y +3)
Answer:D
Step-by-step explanation:
Multiplying out 2(g-h):
2g -2h = b+4
Taking 2h on the right hand side of the equation:
2g = b+4 +2h
Dividing by 2 on both sides:
g = b/2 +2 +h
The answer is b) 89.95in.
To work out the perimeter P of a semicircle you need to use the formula for the circumference of a circle divided by two plus the diameter.
P =
d/2 + d
= 3.14*35/2 + 35
=109.9/2 + 35
= 54.95 + 35
= 89.95in