(5x^2-21x-20)/(5x^2-16x-16)
((x-5)(5x+4))/((x-4)(5x+4))
(x-5)/(x-4)
Answer:
C)
We are given the function f(h)=50-(1/3)h
Step-by-step explanation:
Which means that the initial life of the lawn mower is 50 years with every year, the engine life of the mower is reduced by 1/3 of the time passed
It is not linear, as the 1st hour charged $25, and the 2nd hour charged $40, while the third hour charged $60, that's a $15 difference then a $20
Answer: Degree of polynomial (highest degree) =4
Maximum possible terms =9
Number of terms in the product = 5
Step-by-step explanation:
A trinomial is a polynomial with 3 terms.
The given product of trinomial: 
By using distributive property: a(b+c+d)= ab+ac+ad
Maximum possible terms =9
Combine like terms
Hence, 
Degree of polynomial (highest degree) =4
Number of terms = 5
Assume (a,b) has a minimum element m.
m is in the interval so a < m < b.
a < m
Adding a to both sides,
2a < a + m
Adding m to both sides of the first inequality,
a + m < 2m
So
2a < a+m < 2m
a < (a+m)/2 < m < b
Since the average (a+m)/2 is in the range (a,b) and less than m, that contradicts our assumption that m is the minimum. So we conclude there is no minimum since given any purported minimum we can always compute something smaller in the range.
