Answer:
12
Step-by-step explanation:
If <em>a</em> = 6 and <em>b</em> = -6
<em>a</em> + <em>b</em> = 0
(6) + (-6) = 0
6 – 6 = 0
<em>ab</em> = -36
(6)(-6) = -36
6 • -6 = -36
<em>a</em> – <em>b</em> = 12
(6) – (-6) = 12
6 + 6 = 12
I hope this helps
Answer:
95>=X <=100. More or equal to 95 or equal or less than 100.
Step-by-step explanation:
The Total of the first score is needed first
81+87+ 94+93=355
The total of this score
Let X be the 5TH score we are looking for
(355+ X)/5= 90
355+X= 450
X= 450-355
X= 95 the person needs to sore between 95 and 100 ( which is the highest possible score).
Answer:
Step-by-step explanation:
We know the perimeter of a triangle is the sum of all the sides( two legs and one hypotenuse).
By pythagoras we know that
and the perimeter is 
.
Since P=24 and a=6 we have these equations:
From the last equation we have 
. Replace h in the first equation we get that
and h=18-8=10
2m - [n - (m - 2n)]
2m - n + (m - 2n)
2m - n + m - 2n
2m + m - n - 2n
3m - 3n
Answer is D.
