we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y=kx
where
k is the constant of proportionality
Verify each table
table a
Let
x ----> distance
y ----> sound level
For each ordered pair calculate the value of k
k=y/x
so
(5,85) -----> k=85/5=17
(10,79) ----> k=79/10=7.9
the values of k are differents
that means
the table nor represent a proportional relationship
table b
let
x ----> volume
y ----> cost
k=y/x
(16,1.49) ----> k=1.49/16=0.093125
(20,1.59) ----> k=1.59/20=0.0795
the values of k are differents
that means
the table nor represent a proportional relationship
Option A: 6x^2+75x+200 is the correct answer
Step-by-step explanation:
The profit is obtained by subtracting the cost from the revenue.
Given
The Profit function will be obtained by subtracting the cost function from the revenue function
So,
Hence,
Option A: 6x^2+75x+200 is the correct answer
Keywords: Functions, function operations
Learn more about functions at:
#LearnwithBrainly
Answer:
Step-by-step explanation:
Probability of a head is 1/2 of getting heads.
probability of a number greater than 1 is 7/8 on 8 sided die
Total probability = 1/2 * 7/8 = 7/16 = 0.4375
Answer:
(x + 9) (x - 8)
Replace a with 9
and b with -8
Step-by-step explanation:
