The answer will be 7.644.
0.91×8.4= 7644=7.644
Step-by-step explanation:
peter is still in 1st grade he doesn't understand yet
Answer:
New avaerage if 2 students (15 year old) left = 13
Step-by-step explanation:
Given:
Average age of 20 students = 13.2
Find:
New avaerage if 2 students (15 year old) left
Computtaion:
Sum of all 20 student's age = 20 x 13.2
Sum of all 20 student's age = 264
Sum of current 18 student's age = 264 - 15 - 15
Sum of current 18 student's age = 234
New avaerage if 2 students (15 year old) left = 234 / 18
New avaerage if 2 students (15 year old) left = 13
Step-by-step explanation:
equate the equation to zero
x³-6x+11x-6=0
if we replace x with 1
it will result to zero
1³-6+11-6=0
using long Division
as shown in the picture
obtain
x²-5x+6
using factorisation
x²-5x+6
(x²-2x)-(3x+6)
x(x-2)-3(x-2)
x=2
x=3
x=1
D .............................
