Are there any parentheses in the problem?
She is losing $20, so it indicates a negative number when really it is positive
Answer:
<h3>36 and 12</h3>
Step-by-step explanation:
Let the two positive integers be x and y.
If their product is 432, then
xy = 432 ......... 1
Also if the sum of the first plus three times the second is a minimum, then;
p(x) = x + 3y
From 1;
y = 432/x ..... 3
Substitute 3 into 2;
p(x) = x+3y
p(x)= x + 3(432/x)
p(x) = x + 1296/x
Since the expression is at minimum when dp(x)/dx = 0
dp/dx = 1 + (-1296)/x²
dp/dx = 1 -1296/x²
0 = 1 -1296/x²
0 = (x²-1296)/x²
cross multiply
0 = x²-1296
x² = 1296
x = √1296
x = 36
Since xy = 432
36y = 432
y = 432/36
y = 12
Hence the two positive numbers are 36 and 12
Answer:
i dont understand.
Step-by-step explanation:
Answer:
f(x) = x+3
Step-by-step explanation:
a) For sketching the graph, we need to plot all the points on the XY plane.
Let x represents the time (in years) and y represents the height of the mountain Ash tree (in feet).
We plotted the graph through excel.
b) Using the trendline function in Ms Excel, we get the equation representing this graph
Equation is: y = 0.9783x + 3.6086
The function that models the graph will be calculated graphically that is,
f(x) = x+3