Answer:
its the 3rd one
Step-by-step explanation:
because x=4 and y=28 so 4 times 7 =28
Any irrational number (e.g. π, √2, √3, etc.)
Answer:
He went to bed when it was 40 celsius
Step-by-step explanation:
.5 degree per minute for 60 minutes
.5*60
30 degrees more
30+10=40 degrees
28,000
Hope this helped :)
Answer:

Step-by-step explanation:
We need to find the sum of
and
first.
Adding
+
Combining like terms, we get

-2ab+2ab = 0

Therefore,
.
Now, we need to find the sum of
.
Adding
.
Combining like terms, we get

.
Therefore,

Now, subtracting
.
Distributing minus sign over second parenthesis, we get
.
Combining like terms,


Therefore,
.
Therefore, the difference of the sum of
+
and
is 