Answer:
5 * 5 = 25 and 6 * 6 = 36 :)
Step-by-step explanation:
32 is between 5 * 5 = 25
and also between 6 * 6 = 36
those are both perfect squares
i hope this helps
Answer:
Step-by-step explanation:
To solve this problem, we can use the area of a circle formula as shown below:
<em>A = area</em>
<em>r = radius</em>
<em />
First we need to find the radius.
The radius is half of the diameter. For this problem, the radius is going to be 3.
Now, plug the values into the equation:
The window's area is
To find this answer multiply the cost of the ice cream by 18%/100, or .18
$154 x .18 = $27.72
Answer:
East and west side= 5 foot
South and north side = 10 foot
Area = 50 foot^2
Step-by-step explanation:
We know that:
East and west fencing cost= $4 per foot
South and north fencing cost $2 per foot
So, we can consider:
x= south and north fencing
y= east and west fencing
Then we create an equation representing the case:
Total cost = (south+north)*$2 + (east+west)*$4
80 =(x+x)*2 + (y+y)*4
80 =(2x)*2 + (2y)*4
80 =4x + 8y
80 =4*(x+2y)
80/4 =x+2y
20 = x+2y
x= 20-2y
We can calculate the area as width * length:
Area = length * width
Area= x * y
Area= (20 - 2y) * y
area= 20y - 2y^2
Next step is to find the "y" value for the maximum area so you can derivate and equal to 0 to find maximums:
d(20y - 2y^2)/dy = 20 - 2*2y = 20 - 4y
20 - 4y = 0
20 = 4y
y = 20/4
y = 5
If y = 5, then:
x = 20 - 2y
x = 20 - 2*5
x = 20 - 10
x = 10
Answer:
They could use a football, which is 12 inches in length since 12 * 50 = 600... they would need to measure the football 600 times.
hope this helps:)
