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
Squrt of 72 is 8.49
squrt of 32 is 5.66
squrt of 481 is 21.93
Answer:
Step-by-step explanation:
1 litre = 1000 ml
water : Sucrose : Saline = 1000 : 269 : 61
This is simplest form. We cannot reduce this as 61 is a prime number and 1000; 269 will not come in 61th table or
We can say 100 ; 269 ; 61 don't have common term
Answer:
The expression will be
Step-by-step explanation:
We have given expression
We know the property of exponent that when two function are divided then the power of exponent is subtracted and when there is multiplication of two function then exponent is added
So
So the expression will be