Answer:
x = 0.6y.
Step-by-step explanation:
x = ky is direct variation where k is some constant;
Now we find k:-
Substituting for x and y:
9 = k*15
k = 9/15 = 0.6
So the equation is
x = 0.6y.
Answer:
c
Step-by-step explanation:
5/4>6/5
multiply by 20
25>24
which is true.
The simplified expression of the function
is
. f(x) is increasing for all x > –4.The correct answer is option C.
<h3>What is a function?</h3>
A function is defined as a relation between the set of inputs having exactly one output each.
The function expression is given as:
Expand the denominator
Factorize the denominator

Factor out x + 9

The simplified expression of the function
is
. f(x) is increasing for all x > –4
Read more about functions at:
brainly.com/question/1851758
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Answer:
The formula is 4cm times 9cm which is 36cm. Then times that by pi which is 113.04. The answer is 113.04
Step-by-step explanation:
Answer:
r = 9/sin Ф or r = 9 csc Ф
Step-by-step explanation:
The polar form is represented as:
x = r cos Ф and
y = r sin Ф
We are given:
y = 9
Putting value in y = r sin Ф
9 = r sin Ф
=> r = 9/sin Ф
1/sin Ф = csc Ф
or, r = 9 csc Ф