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):
and
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
Length: 10 cm
Width: 5 cm
20
x / 100 = 0.2
Multiply both sides by 100 to isolate x. 100 x 0.2 = 20
5/12=.417
12-3-4=5 dark ones
Joe