Answer:
There is no change.
Step-by-step explanation:
The conversion is 9*9=81
The conversion is true
Answer:
a) $4720
b) $5569.60
Step-by-step explanation:
Initial amount = $4000
Interest rate = 18% PA compounded
<u>Amount after 1 year</u>
<u>Amount after 2 years</u>
Answer:
KE = 900,000t²
Step-by-step explanation:
The formula for calculating the kinetic energy of a body is expressed as KE = 1/2mv² where;
m is the mass of the sport car = 2000kg
v is the velocity of the car
Since v = at
v = 30t
Substituting the given values into the KE formula;
KE 1/2 * 2000 * (30t)²
KE = 1000*900t²
KE = 900,000t² Joules where t is the time measured in seconds
Answer:
Third choice

Step-by-step explanation:
<u>Definition</u>
An inverse function is defined as a function, which can reverse into another function.
Thus, if we have a function f(x) which evaluates to k at x = a or in other words f(a) = k, then the inverse of that function indicated by f⁻¹(x) will be such that f⁻¹(k) = a. This is the same as stating that f⁻¹(f(a)) = a
In order the find the in verse of a function f(x) the following are the steps
- Set y = f(x)
- Switch x and y
- Solve for y
Given
, set it equal to y
Swap the variables x and y
==> 

Solve for y. There are two possible solutions

= 
The only matching choice are choices 1 and 3. In order to determine if it is the first or the third, plug in 0 and see if the inverse value results in a real number
Substituting 0 for x in
gives us 0 + 5 = 5 which is a valid real
So the domain of the function are all values ≥ 0
Hence choice 3, not choice 1