Answer:
12
Step-by-step explanation:
substitute
4(4-1)
4(3)
12
Answer:
15
Step-by-step explanation:
mode is the number that appears most often. 7,9,5 and 3 all show up once, but 15 shows up twitch
Answer:
1. $250,000× 6,5%= $16,250
$310,000×6,5% = $20,150
therefore $16,250+$20,150=$21,800
2
991,000 times ×$1,09×15% = $162,028.5
Step-by-step explanation:
3. $8,870×25%=$2217,50
Answer:
b. 
Step-by-step explanation:
Here we are given 
and are asked to simplify it. We are going to apply the law of exponents which says that
Hence applying this rule in our problem we get, where a=y and n=3
Hence our C) Option is correct
Answer:
1.8 ; 11.8 ; 4.18
Step-by-step explanation:
Given the data:
X : 2.4,1.6, 3.2,0.3, 1.5
Mean, m = Σx / n
Σx = 9 ; n = 5
m = 9 /5
m = 1.8
If data is increased by 10:
X : 12.4, 11.6, 13.2, 10.3, 11.5
Σx = 59 ; n = 5
m = 59 /5
m = 11.8
If data values is doubled :
X : 5.76, 2.56, 10.24, 0.09, 2.25
Σx = 20.9 ; n = 5
m = 20.9 /5
m = 4.18
