Answer:
41.15
Step-by-step explanation:
41.15
Answer:
The function is A = 10√r
Step-by-step explanation:
* Lets explain the meaning of direct variation
- The direct variation is a mathematical relationship between two
variables that can be expressed by an equation in which one
variable is equal to a constant times the other
- If Y is in direct variation with x (y ∝ x), then y = kx, where k is the
constant of variation
* Now lets solve the problem
# A is varies directly with the square root of r
- Change the statement above to a mathematical relation
∴ A ∝ √r
- Chang the relation to a function by using a constant k
∴ A = k√r
- To find the value of the constant of variation k substitute A and r
by the given values
∵ r = 16 when A = 40
∵ A = k√r
∴ 40 = k√16 ⇒ simplify the square root
∴ 40 = 4k ⇒ divide both sides by 4 to find the value of k
∴ 10 = k
- The value of the constant of variation is 10
∴ The function describing the relationship of A and r is A = 10√r
Answer:
-127
Step-by-step explanation:
s = 101x-41+50
80 = 101x - 4+ 50
-101x
-181 = x - 4 +50
-181 = x -54
+ 54
-127 = x
I hope this helps
Answer:
I think its A...
Step-by-step explanation:
Answer:
- There is no power of 2 that is equal to 0.
- Its inverse does not have any x-intercepts.
Step-by-step explanation:
Given the function

This function can be written as:

As the rule tells s that

so

As we know that the value of x=0 at y-intercept.

For any value of
, this statement is false as there is no power of 2 that is equal to 0.
Also
Lets interchange x and y in the equation
to find the inverse of the function.

So, it doesn't have any x-intercepts as for any value of x, the value of
can not be zero for this function.
Therefore, Its inverse does not have any x-intercepts.