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
f(g(x)) You plug in g(x) for x
f(x) = 2x + 3
f(g(x)) = 2(g(x)) + 3
f(g(x)) = 2(4x - 5) + 3
f(g(x)) = 8x - 10 + 3
f(g(x)) = 8x - 7
g(f(x)) You plug in f(x) for x
g(x) = 4x - 5
g(f(x)) = 4(f(x)) - 5
g(f(x)) = 4(2x + 3) - 5
g(f(x)) = 8x + 12 - 5
g(f(x)) = 8x + 7
<em>50/50 CHANCE.</em>
<u>With a coin that contains two </u><u>sides</u><u> the probability of heads and tails is always fifty percent for each side</u>. One hundred divided by two would be 50.
Answer:
it would be a 2/30 chance
Step-by-step explanation:
Answer:
Option 1. (-5, 12)
Step-by-step explanation:
Here given values of the angles are csc∅ = 13/12 Or sin ∅ = 12/13
sec ∅ = -13/5 Or cos ∅ = -5/13
cot ∅ = -5/12 Or tan ∅ = -12/5
As we know cos ∅ = x-coordinates / y-coordinates which = negative value
tan ∅ = y-coordinates / x - coordinates = negative value
Now we can say the angle lies in second quadrant. So the point (x, y) will be (-5, 12).
Therefore answer is option 1.
