Answer:
27x^3 - 54x^2 + 36x - 8
Step-by-step explanation:
(3x - 2)^3
= (3x - 2) (3x - 2) (3x - 2)
= 27x^3 - 54x^2 + 36x - 8
Hope this helps :)
Let me know if there are any mistakes!!
Answer:
Step-by-step explanation:
Given
Required
Determine the line equation
This question will be answered using linear interpolation.
This is represented as thus:
Substitute values for x1,x2,y1 and y2
Cross Multiply
Make y the subject
Answer:
1) x = 22.5
Step-by-step explanation:
4/9 = 10/x
4 × x = 10 × 9
4x = 90
4x/4 = 90/4
x = 22.5
Answer:
2) 2.4
Step-by-step explanation:
5/2 = 6/x
5 × x = 6 × 2
5x = 12
5x/5 = 12/5
x = 2.4
Answer:
3) x = 0.8
Step-by-step explanation:
5/2 = 2/x
5 × x = 2 × 2
5x = 4
5x/5 = 4/5
x = 0.8
hope it helps!! (I'll add other answers too)
tell me if any of my answers are wrong
Answer:
C
Step-by-step explanation:
i dont really know anything about angles but it looks like the 3x is the exact same angle as 30 degrees on the other side of it
3x=30
x=10
AC = AB + BC
= 6 + 12
= 18