Use the formula: y^2 - y^1 divided by x^2 - x^1.
x^1= 14, y^1= -8, x^2= 7, y^2= -6
Plug it in: -6- -8 divided by 7-14
Answer: 2/-7
Answer: Your answer would be 6
Step-by-step explanation:
The area is:
A = x * y = 20000
The cost function is:
C = 2.50 (2x) +3.50 (2y)
Rewriting we have:
C = 5x + 7y
Writing as a function of x we have:
C = 5x + 7 (20000 / x)
Rewriting:
C (x) = 5x + 140000 / x
We derive:
C '(x) = 5-140000 / x ^ 2
We equal zero and clear x:
0 = 5-140000 / x ^ 2
140000 / x ^ 2 = 5
x ^ 2 = 140000/5
x = root (140000/5)
x = 167.33 feet
Therefore the cost is:
C (167.33) = 5 * (167.33) + 7 * (20000 / 167.33)
C (167.33) = 1673.32 $
Answer:
The cost of the least expensive fence is:
$ 1673.32
First distribute the -3 to 4x + 3
It'll be -12x - 9
Then distribute 4 to 6x+1
It'll be 24x+4
-12x - 9 + 24x + 4 = 41
Add the like terms
12 x -5 = 41
12 x = 46
x = 46/ 12
In fractions the answer is 23/6
In decimals the answer is 3.84
Let me know if you need more help :)
Brad is correct.
Polynomials do not include negative exponents; this means there can be no variables in the denominator. If two polynomials do not divide evenly, the remainder is written as a fraction with the divisor (which can include a variable) in the denominator. This is not a polynomial.
