A)
Two sides are 8 x 2 = 16 x 2 = 32 sq. in.
Two sides are 11 x 2 = 22 x 2 = 44 sq. in.
Top is 8 x 11 = 88 sq. in.
Total surface area: 32 + 44 + 88 = 164 square inches.
B) Area of a circle = PI x r^2
Area = 63.585
63.585 = PI x r^2
Using 3.14 for PI:
63.585 = 3.14 x r^2
Divide both sides by 3.14:
r^2 = 63.585 / 3.14
r^2 = 20.25
r = √20.25
radius = 4.5 inches.
C)
Diameter = radius x 2
Diameter = 4.5 x 2 = 9 inches.
A) Add the distances together and divide by the number of attempts:
50.7 + 49.4 + 52.3 + 48.9 + 51.6 = 252.9
252.9 / 5 = 50.58
The average was 50.58 m.
B) Add 52.5 to the total above and divide by 6:
252.9 + 52.5 = 305.4
305.4 / 6 = 50.9 m.
Now subtract the average from above:
50.9 - 50.58 = 0.32 difference.
Answer:
The constant difference is 8
Step-by-step explanation:
-6 + 8 = 2
10 + 8 = 18