Answer:
UW = 5
Step-by-step explanation:
use the altitude rule and set up a proportion:
4/UW = UW/6.25
cross-multiply:
UW² = 25
UW = 
UW = 5
1)a) 1:4
b) 2:1
c) 1:4
d) 1:70
e) 7:18
f) 100:3
I think they're all right :)
Answer:
3 sets.
1 7 10
2 7 9
3 7 8.
Step-by-step explanation:
The sum must be 18 ( 3*6) and 7 is the middle number ( the median).
So the first and last numbers must add up to 11 with the first number less than 7. As there is no mode no number can be repeated.
So one set is 3 7 8 (the first number can't be 4 as the last number would have to be 7)
Others are 2 7 9,
1 7 10.
N = (6*0.2)/0.06 = 20
The number is 20
22x-74=0
+74 +74
22x=74
X= 3.36 repeating