Answer:
The error is located in step 9, because the student made the following operation: 
, instead of 
, presented in step 4) of our demonstration. The real solution is 9.
Step-by-step explanation:
First, we proceed to show the appropriate process to solve the equation for 
by algebraic means. That is:
1) 
Given
2) ![(-4)\cdot [6+(-r)] = 12](https://tex.z-dn.net/?f=%28-4%29%5Ccdot%20%5B6%2B%28-r%29%5D%20%3D%2012)
Definition of substraction
3) 
Distributive property
4) 
/
5) ![4\cdot r +[24+(-24)] = 12 +24](https://tex.z-dn.net/?f=4%5Ccdot%20r%20%2B%5B24%2B%28-24%29%5D%20%3D%2012%20%2B24)
Compatibility with addition/Commutative and associative properties
6) 
Existence of additive inverse/Modulative property
7) 
Compatibility with multiplication/Commutative and associative properties
8) 
Existence of multiplicative inverse/Definition of division/Result
The error is located in step 9, because the student made the following operation: , instead of , presented in step 4) of our demonstration. The real solution is 9.
The general equation is: f(t)= 
The given equation is: f(5)=288.9 when r = 0.05
Following the general equation, we know the following:
t=5, r = 0.05 and = 288.9
Substituting all unknowns, we can solve for p
= 288.9
Solving for p,
p = 225
Answer:
3/6x • 4/6x
12/6x
2x
Step-by-step explanation:
you would change both fractions to have the same denominator then simplify if needed
All of them, I do believe.
I hope this helps :)
Answer:
f(x) = (x - 2)(x - 3)(x - 5)
f(x) = x³ - 10x² + 31x - 30
Step-by-step explanation:
We have to write the equation for the cubic polynomial function whose graph has zeroes at 2, 3, and 5.
That means at x = 2, x = 3 and at x = 5 the function f(x) will become zero.
Therefore, (x - 2), (x - 3) and (x - 5) are the factors of the function f(x).
Ans the cubic function is f(x) = (x - 2)(x - 3)(x - 5) .......... (1) (Answer)
Now, we have to simplify the right hand side of the equation (1).
Hence, f(x) = (x - 2)(x² - 8x + 15)
⇒ f(x) = x³ - 8x² + 15x - 2x² + 16x - 30
⇒ f(x) = x³ - 10x² + 31x - 30
So, this is the requires equation. (Answer)
