We have three similar triangles, let's see if we can get this right, right vertex first, then other vertex from small side:
EDF ~ GDE ~ GEF
As ratios that means
ED:DF:EF = GD:DE:GE = GE:EF:GF
x:20:y = 5:x:GE = GE:y:15
Since we're after y we choose
20/y = y/15
20(15) = y²
y² = 300
y = 10√3
y ≈ 17.32
Answer:
1 AND 4/19
Step-by-step explanation:
2/3=3/5
lcm=15
10/15+9/15=19/15= 1 AND 4/19
C- 2100
A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed from 5 teachers and 10 students is
A.10
B. 15
C. 2100
D. 8
Conjectures are statements believed to be true that are based upon observations.
Example: 2,4,6,8,10,12
What would be the next number? 14
