Answer:
Step-by-step explanation:
Let the numbers be
Such that:
Make z the subject
For their product to be maximum, we have:
Substitute in
Open bracket
Differentiate w.r.t x and y
Since the products are maximum, then
For
Factorize:
Split
Make y the subject
For
---------------------------------------------------
Substitute y = 0
Factorize
---------------------------------------------------
Substitute
Re-arrange
Factor x out
Divide through by x
Recall that:
Take LCM
Recall that:
Take LCM
Hence, the numbers are:
Answer:
Step-by-step explanation:
The Jones family has saved a maximum of $750 for their family vacation to the beach. It means that whatever they would do during the vacation, they cannot spend more than $750.
The inequality can be used to determine the number of nights the Jones family could spend at the hotel is
750 ≥ 75 + 125h
This can also be written as
75 + 125h ≤ 750
We would solve the inequality for the value of h.
125h ≤ 750 - 75
125h ≤ 675
h ≤ 675/125
h ≤ 5.4
For any value of h greater than 5.4 hours, the inequality will not be true.
Answer:
7103.98
Step-by-step explanation:
1) 3991 × 6% = 239.46 intrest rate of a year
2) 239.46 × 13 = 3112.98 intrest rate of 6% for 13yrs
3) 3991 + 3112.98 = 7103.98 Stephanie account balance after 13 yrs
Answer:
a) Find the value of the function when x = -2
b) we get f(-2)=65
Step-by-step explanation:
We are given the function f(x)=6(8-x)+5
a) What does the notation f(-2) mean?
The notation f(-2) means that we have to put x = -2 in the given function of f(x) and find the value of the function when x = -2
b) What is the value of f(-2) ?
We need to find the value of f(-2)
Put x = -2
So, we get f(-2)=65