Answer:
28.26 square inches
Step-by-step explanation:
Formula for area of a circle:

Radius is 3.

Use 3.14 for pi:

The area should be 28.26 square inches.
Answer:
468
Step-by-step explanation:
Formula for infinite sum of geometric series is;
S_∞ = a1/(1 - r)
Where;
a1 is first term
r is common ratio
We are given;
a1 = 156
r = ⅔
Thus;
S_∞ = 156/(1 - ⅔)
S_∞ = 156/(⅓)
S_∞ = 468
To find the total weight of error subtract the measured weight from the actual weight
3900kg (actual weight) - 3867kg (measured weight) = 33 kg erorr
Answer:
11) B
12) B
Step-by-step explanation:
Answer:
The area of the intersection is 1000 sq ft.
Step-by-step explanation:
It is given that,
The intersection of two streets forms a parallelogram. One street is 40 feet wide. The height of the parallelogram formed is 25 ft.
We need to find the area of the intersection.
It means the a parallelogram has a base of 40 feet and a height of 25 feet. Area of parallelogram is given by :

So, the area of the intersection is 1000 sq ft.