Answer:
f(x) = 5x - 30
Yes it is a function
Step-by-step explanation:
Because when you input 0 you get -30 we know it starts at 0 or (0,-30). This gives us b in the equation y = mx + b.
We know that for every 4 cars washed it increases by 20. So 20/4 is 5. This tells us m = 5.
Plug it all in and you get y = 5x - 30 or f(x) = 5x - 30
Answer:
log = 16
Step-by-step explanation:
The logarithm of x with base b is defined as
logbx=y if and only if by=x
where x>0, b>0, and b≠1.
Step-by-step explanation:
9x - 2 = 5x + 54 because these angles are corresponding
9x - 5x = 54 + 2 add/subtract like terms
4x = 56 and this divided by 4
x = 14
9x - 2 + 10y + 6 = 180° because these two angles makes a straight line
9×14 - 2 + 10y + 6 = 180°
126 - 2 + 10y + 6 = 180° add like terms
130 + 10y = 180° subtract 130 from both sides
10y = 50 divide by 10
y = 10
Answer:
D
Step-by-step explanation:
45-45-90 triangle
X-smallest
y middle
z largest
x+1=y
y+1=z
2x+3z=126
2x+ 3(y+1)=126
2x+3y+3=126
2x+3(x+1)=123
5x=120
x=24
y=25
z=26
