Step-by-step explanation:
Firstly, there's a typing error at (x=1)². I assume it is (x-1)². If my assumption is correct,then:
x²-2x+1-4x=x²-2x+1
x²-6x+1-x²+2x-1=0
-4x=0
x=0
Answer:
-7x-48
Step-by-step explanation:
2x-3(20-3x)+12
2x-60-9x+12 (distribute)
-7x-48
hope this helps
brainliest?
Answer:
The ratio of AC/CB=1/3
Step-by-step explanation:
We use the section formula:

We substitute the point A(-1.5,0) and B(4.5,8).
We plug in the points to get:

This is supposed to be equal to: (0,2).

We can equate, corresponding coordinates to find m and n.

This implies that:




Therefore the ratio is m:n=1:3
Answer:
76.8
Step-by-step explanation:
The mean is the sum of the values divided by the total number of values.
63+73+92+63+93 / 5 =
384 / 5 = 76.8
Answer:
5/8+3/4-2/3-5/6
= ( 5/8 + 3/4 ) - ( 2/3 + 3/4)
= ( 11/8) - (17 /12)
= 11/8 - 17/12
= 33-34 /24
= -1/24 (ans)
Hope it helps