Answer:
3x-4y
Step-by-step explanation:
combine like terms. 2x+x=3x.
-5y+y=-4y
Answer: y= 3/5x+1
Step-by-step explanation: if you want to check if its perpendicular go on Desmos graphing calculator on goolge and plug both equations:)
Answer:
90 units
Step-by-step explanation:
circumference C = 2
r
taking
as 3.
C = 2 × 3 × 15
(15 is the radius of the circle)
C = 90 units
Answer:
I'll give you the answers for 1 - 5: 1). 24, 2).19, 3)10, 4)13, 5)-17
Step-by-step explanation:
You simply substitute the corresponding values for the corresponding function:
f(6) if f(x) = 4x so, f(6) = 4(6) = 24
Another example:
f(5) if f(x) = 3x - 2 so, f(5) = 3(5) - 2 = 15 - 2 = 13
It can be factorised as

so the solutions are
x= 10 and x = -9
so the sum of the solutions is 10 -9 which is 1