Answer:
x=-31
Step-by-step explanation:
Get x by itself by subtracting 2 from both sides. -29-2=-31.
(3y + 7) + (5y-7)= 8y
(4y - 5)- 8y= -4y-5
Hence the maximum possible area is 2500 square meteres
Given the area of the rectangular garden expressed as;

The maximum area occurs when dA(x)/dx = 0

Next is to get the maximum area possible. Substitute x = 50 into the original function as shown;

Hence the maximum possible area is 2500 square meters
Answer:
A₁ = $150.
Step-by-step explanation:
We know that:
Sarah has saved $150 at the moment.
She wants to double the amount that she saves each month, so the next month she needs to save 2*$150 = $300
And if she saves the $300, then her grandma will give her another $50.
Then, if the previous month Sarah saved A, then the next month she will get the double of A plus $50, which is:
2*A + $50
Then the recursive relation is just:
Where Aₙ is the amount that she saves in the n-th month, and the first term of the sequence is the initial amount that she saved, so we have:
A₁ = $150.