Answer:
A) x+y=4
B) x-y=-6
We add both equations and get
2x = -2 so x = -1
and y = 5
So the ordered pair (-1, 5) is the solution to the equations.
Step-by-step explanation:
20.8.
You multiply 5.2 times 4
The largest amount is 800,000 and the smaller amount is 800,000 because your rounding by the hundreds
B] The rule represents the reflection over y-axis is given by:
(x,y)⇒(-x,y)
c]Using this rule, the image would be located onto the pre-image when reflected again. This implies that it will be mapped onto the original point.
d] When the new pentagon is rotated 90° clockwise, the new coordinates will be as follows:
the rule for this rotation is given by:
(x,y)⇒(-y,x)
thus using the above rule new coordinates will be:
A"(-1,8), B"(-3,9), C"(-2,6), D"(-5,3) and E"(-1,4). The new figure is shown in the graph.
Remembering PEMDAS we solve like this
5•6=30 6÷2=3 30-3=27
27 is answer. it is easy, just replace the letter with the number and solve it