Questions:
(a) What is a simplified expression for (x + y) – (x – y)?
(b) Carlotta thinks that 
is the same as 
. Which statement shows that it is NOT the same?
Answer:
Step-by-step explanation:
Solving (a):
Given
Required
Simplify
Open brackets
Collect Like Terms
Solving (b):
Given
and
Required
Which expression shows they are not the same
The expression that shows this is:
Take for instance; y=2
Substitute 2 for y in
Evaluate all exponents
The above expression supports
1) 2x + y = 8 2) x - 3y = -3
y = -2x + 8 y = -x - 3 / -3
y-coordinate: (0, 8) x-coordinate: (-3, 0)
Answer:A he is correct because the inner circle is a dilation of the outer circle
Step-by-step explanation: just did the test
You have to multiply your 20cm by 6cm and your final answer being 120 because 0 times 6 is zero and 2 times 6 is 12, then that getting you 120
