The median is 4
There are 3 numbers below 4. and the lower quartile is the middle number of these 3.
So its 2
(3x+7) / (x+5). ....................
Answer: b) sq. root of 65
use pythagorean theorem to solve
a2+b2=c2
3^2+b^2=5^2
9+b^2=25
b^2=16
b=4
apply to other triangle for second leg
7^2+4^2=c^2
49+16=c^2
65=c^2
sq root of 65= c
1. Get a snack next to you so you dont spend most time saying your hungry.
2. Make a comfortable spot. (not too comfortable or you will fall asleep)
3. Start with the first concepts and get harder as you finish.
4. Practice 6 or more problems/questions per lesson.
5. NO T.V. OR ELECTRONICS OR MUSIC because they are distracting.
6. Make notes to your self by repeating the concept. Repetition helps you remember.
First, the factor pairs for 18 are:
1, 18
2, 9
3, 6
Since the middle term is -3, the two factors must be 3 apart. The only pair that is 3 values apart is 3, 6.
Since the middle value is negative, the larger number is negative. This means that the 6 is negative.
z = -6
z = 3
Set each equal to 0;
z = -6
z + 6 = 0
z = 3
z - 3 =0
So your factors are (z+6) and (z-3), or answer B.
