She will have 315 Dollars.
Let
x------> the length side of the square base of the box
y-------> the height of the box
we know that
volume of the box=b²*h
b=x
h=y
volume=256 cm³
so
256=x²*y------>y=256/x²--------> equation 1
<span>The amount of material used is directly proportional to the surface area, so we will minimize the amount of material by minimizing the surface area.</span>
surface area of the cardboard=area of the base+perimeter of base*height
area of the base=x²
perimeter of the base=4*x
height=y
surface area=x²+4x*y-----> equation 2
substitute equation 1 in equation 2
SA=x²+4x*[256/x²]-----> SA=x²+1024/x
step 1
find the first derivative of SA and equate to zero
2x+1024*(-1)/x²=0------> 2x=1024/x²----> x³=512--------> x=8 cm
y=256/x²------> y=256/8²-----> y=4 cm
the answer is
the length side of the square base of the box is 8 cm
the height of the box is 4 cm
No, it can't.
Irrational numbers are numbers that cannot be expressed as fractions.
So therefore, Pi cannot equal 22/7.
Answer:
A. 2x + y < 7
Step-by-step explanation:
the slope is negative and the y-intercept is positive
Answer:
y=2/3x-8
Step-by-step explanation:
2x-3y=24
3y=2x-24
y=2/3x-24/3
y=2/3x-8
y=mx+b where m=slope and b=y-intercept.
