Answer:
you would mark at 3/5.
Step-by-step explanation:
because 3/5 divided by 1/10 is 6.
then you would convert that to a decimal then fraction and that would end up being 3/5
Answer:
16,242. 7 cm^3.
Step-by-step explanation:
We need to cut off a square piece at the 4 corners of the cardboard.
Let the length of their edges be x cm.
The volume of the box will be:
V = height * width * length
V = x(100-2x)(40-2x)
V = x(4000 - 200x - 80x + 4x^2)
V = x(4x^2 - 280x + 4000)
V = 4x^3 + - 280x^2 + 4000x
Finding the derivative:
dV / dx = 12x^2 - 560x + 4000 = 0 ( when V is a maxm or minm.)
4(3x^2 - 140x + 1000) = 0
x = 37.86, 8.80.
Looks like x = 8.80 is the right value but we can check this out be looking at the sign of the second derivative:
V" = 24x - 560, when x = 8.8 V" is negative so this is a Maximum for V.
So the maximum volume of the box is when x = 8.8 so we have
V = 8.8(100-2(8.8)(40 - 2(8.8)
= 16,242. 7 cm^3.
<h3>
Answer:</h3>
2+2 = 4
<h3>Very Simple!</h3>
▶Add 2 to 2 , you may count it with your fingers.
<h2>Additionally Information:</h2>
- (-) This sign means subtraction i.e. you must take out!
- (×) This sign means multiplication i.e.you must multiply !
- (÷) This sign means division i.e. you must divide!
This are for beginners ✔
<h2>Hope you understand</h2>
Answer:
No
Step-by-step explanation:
5.564 - 5.654= -0.09
----------------------
Answer:
136112 
Step-by-step explanation:
since the outer circle is 25cm wider on one side, the radius of outer circle is 25 cm wider. (imagine rotating the green line to match with the pink line, you'll see the outer circle radius more clearly)
r of inside circle = 148.4/2 = 74.2
r of outside circle = 74.2 +25 = 99.2
the shaded region = A of outer circle - A of inner circle
=3.14(99.2)^2 - 3.14(74.2)^2
area of a circle is 
, I plugged in known values above^.
= 30899.6096 - 17287.7096 = 13611.9 (I definitely recommend a calculator)
rounded to nearest whole number = 13612
