Answer:
C is the answer
Step-by-step explanation:
The Y intercept of the graphed function would be,
(0,-9) because the graph (which is a function) intercepts on (0,-9) therefore the function's y-intercept is,
b= -9
Answer:
18.75%
Step-by-step explanation:
percent increase = 
× 100%
Increase in cost = $38 - $32 = $6
percent increase = 
× 100% = 
= 18.75%
Answer:
y+2 = 2(x+2)
Step-by-step explanation:
given point (a,b) and slope m, point slope form of a line is:
y-b = m(x-a)
Answer:
600 L of 30% proof and 400 L of 80% proof is needed
Step-by-step explanation:
Let the amount of 30% smell proof be x while that of 80% smell proof is y
Then;
x + y = 1000 •••••(i)
Also;
30% of x + 80% of y = 50% of 1000
0.3x + 0.8y = 500 •••••(ii)
From i, x = 1000 - y
Put this into ii
0.3(1000-y) + 0.8y = 500
300 - 0.3y + 0.8y = 500
0.5y = 500-300
0.5y = 200
y = 200/0.5
y = 400 L
But x = 1000 - y
x = 1000 - 400 = 600 L
All of them are statistical
