Answer:
The area of remaining sheet is 1077cm²
Step-by-step explanation:
First, you have to find the area of circle using the formula, A = πr², where r is the radius of circle:
r = 20cm
A = π × 20²
= 400π cm²
Second, you have to find the area of rectangle:
A = 12 × 15
= 180 cm²
Lastly, you need to substact the area of rectangle feom the area of circle to find the remaining sheet that has not being cut:
A = 400π - 180
= 1077 cm² (3s.f)
Answer:
: A semi-circle is half of a circle. Area of semi-circle formula is derived from the formula of a circle. Hence the area of a semi-circle is just the half of the area of a circle. How to Find the Area of a Semicircle To find the area of a semi-circle, you need to know the formula for the
Step-by-step explanation:
welcome
Answer:
(8, 6)
Step-by-step explanation:
Let t = the cost of the tie and p = the cost of the pants
t + p = 87.76
We know the cost of the tie (t) is equal to 5.64 less than the pants then we can write:
t = p-5.64
Substitute back into the original equation
(p-5.64)+p=87.76
2p= 93.4
p=46.7
Substitute p back into the original equation
t+46.7= 87.76
t=41.06
We can verify this is true by adding them back together to get 87.76.
Answer:
1.178
Step-by-step explanation:
(for Jamal)
5 x 2 = 10
6 x 3 = 18
7 x 2 = 14
8 x 1 = 8
10 x 1 = 10
Mean: 10 + 18 + 14 + 8 + 10 = 60/9 = 6.6
6.6 - 5 = 1.6 x 2 = 3.2
6.6 - 6 = 0.6 x 3 = 1.8
7 - 6.6 = 0.4 x 2 = 0.8
8 - 6.6 = 1.4
10 - 6.6 = 3.4
<em>Mean Absolute Deviation:</em> 3.2 + 1.8 + 0.8 + 1.4 + 3.4 = 10.6/9 = 1.178