Is the anser suppose to be the numbers that equal 180?
Let
x-------> the length side of the equilateral triangle
y-------> the length side of the square
we know that
The sum of the perimeters of an equilateral triangle and a square is
Perimeter of triangle is equal to
Perimeter of the square is equal to
so
------> equation
Find the area of equilateral triangle
Applying the law of sines
Find the area of the square
Fin the total area
----> equation
Substitute equation in equation
Using a graph tool
see the attached figure
we know that
the vertex of the graph is the point with the minimum total area
the vertex of the graph is the point
that means that
for the total area is equal to (is the minimum total area)
find the value of y
therefore
the answer is
the length side of the equilateral triangle is equal to
the length side of the square is equal to
The slope is -½, and the y intercept would be (0, -5/2)
Hello there, here are the correct answers to your question!
a) The estimated value of the bill would be $24.
b) Yes, the total on the register is reasonable. The estimate is $24, and after subtracting the estimated coupon amount of $2, you get $22, which is very close to $21.77
Here is the work I did to get your answers:
part a:
$2.95 $1.19 $4.61 $1.74 $3.04 $8.83 $1.16 − $0.75 − $1.00
Round to the nearest dollaer amount.
$3 $1 $5 $2 $3 $9 $1 - $1 - $1
Add the values of your purchases (excluding the coupons)
$3 + $1 + $5 + $2 + $3 + $9 + $1
$4 + $7 + $3 + $10
$4 + $20
$24
Part b:
Together, the coupon gives you $-2 off, so subtract $2 from $24
$24 - 2 = $22
So yes, the total is reasonable since $22 is very close to $21.77.
<em>I hope this helps, and have a great day! Please don't hesitate to ask if you need more help with this specific question! </em>
False, only living things are made up of cells.