Answer: 20
Step-by-step explanation:
x+y=5
x-y=4
---------
x+y=5
x=4+y
--------
(4+y)+y=5
4+y+y=5
4+2y=5
2y=1
y=0.5
x=4.5
---------
x²-y²=(4.5)²-(0.5)²=20.25-0.25=20
Answer:
The fractional equivalent of the repeating decimal would be 15/99 and 0.1515... is a repeating decimal so it doesn't end, but in the shown number is 4 digits.
Answer:
4^18
Step-by-step explanation:
4^18 = 2^36
(4^−3)^−6? = 2^36
Please visit: https://youtu.be/_0Ft9HdNg5c
Thanks.
Answer:
Step-by-step explanation:
In 
, notice the third term of the quadratic in standard form is formed entirely by 
.
Therefore, in 
:
.
Now that we found 
, we must find 
. The first term of the quadratic in standard form is formed entirely by 
. Therefore:
.
