Answer:
5
Step-by-step explanation:
good boy or girl
Answer: $3.25
Step-by-step explanation:
First you need to calculate the cost of the 8 pounds of nuts.
Cashews = 4 x $4 = $16
Peanuts = 4 x $2.50 = $10
The total cost of 8 pounds of nuts equals $16 + $10 = $26
In order to calculate the cost of 1 pound of the mixture you need to divide the total cost by the total weight.
$26 / 8 lbs = $3.25 / lb
The cost of one pound of the mixture is $3.25.
Answer:
x = 600 m
y = 1200 m
Amax = 720000 m²
Step-by-step explanation:
Let call x the smaller side of the rectangular plot and y the largest ( we assume we have one y side bounded by a river: Then
A(p) Area of the plot x*y
A(p) = x*y
And perimeter of the plot ( to be fenced ) is:
P(p) = 2*x + y = 2400 ⇒ y = 2400 - 2*x
Area of rectangular plot as function of x:
A(x) = x * ( 2400 - 2x )
Taking derivatives on both sides of the equation
A´(x) = ( 2400 - 2x ) + (-2) *x ⇒ A´(x) = ( 2400 - 2x ) - 2x
A´(x) = 0 ⇒ 2400 - 4x = 0 ⇒ 4x = 2400
x = 600 m
And y = 2400 - 2*x
y = 2400 - 1200
y = 1200 m
And the largest enclosed area is Amax = 1200*600
Amax = 720000 m²
The new coordinates should be P= (-7, -8) O= (5, -7) and W= (-2,-4). Graph those points and you have your reflected triangle! I hope this helps!!
