I think the answer is 12 units
number a is too low so we will work with c after all I put that and got it eight
Perimeter of triangle is sum of all the 3 sides.
So,
perimeter
= 3x-4 + x^2-1 +2x^2 -15
combining like terms,
= 3x^2 + 3x -20
given that x = 4,
= 3(4^2) +3(4) -20
= 3(16) +12-20
= 48 -8
= 40
hence the perimeter is 40 feet.
The correct answer is 4C0m430 + 4C1m331 + 4C2m232 + 4C3m133 + 4C4m034
Answer: The Median: 78, The First Quartile: 63, and The Third Quartile: 99
Step-by-step explanation: Ok, so let's put the data set from least to greatest....
(63, 63, 76,) (77, 79,) (84, 99, 99)
First Quartile Third Quartile
First, let's find the median, since you made a little mistake...
77 + 79 = 156
156 ÷ 2 = 78
The median is 78!
Now, let's determine the first quartile and the third quartile.
For the the first quartile/third quartile it'll be the middle number, if it's even we'll do the same extra step just like we'll do for the median. In this case it's not even therefore...
First Quartile: 63
Third Quartile: 99
I hope this helps!