Answer: b
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
u-t = 2
u+t= 5
(u-t) (u²-t²)
(u-t) (u-t) (u+t) (a²-b²= (a+b) (a-b))
put the values
(2)(2)(5)
=20
Answer:
1/18
Step-by-step explanation:
Answer:
Refer to explanation^
Step-by-step explanation:
As stated in the solution, 3/7 is a negative fraction.
To make it less confusing,
2/7 x (-3/7)
Multiply the numerator with the other numerator and the denominator multiply with the other. Like...
2 multiply 3 = 6 (numerator)
7 multiply 7 = 49 (denominator)
Since the 2nd fraction is a negative, the answer is negative too.
If you convert the fraction to a decimal, it gives -0.1224489796
Answer is Choice b. X-Y=201
