Answer:
circumference is 50.24cm
Step-by-step explanation:
π
= 200.96
r = 
= 
=8
Circumference = 2πr = 2 x.3.14.x 8 = 50.24
Answer:
the volume of the rectangular prism = 166.336 cubic cm
Hence, option C is correct.
Step-by-step explanation:
We can determine the volume of the rectangular prism using the formula given below.
The volume of the rectangular prism = Base area x Height
<u><em>Determining the Base area:</em></u>
Given
Area of the Base area = l × w
= 3.2 × 4.6
= 14.72 cm²
Thus, the area of the Base area = 14.72 cm²
As the height h = 11.3 cm
Thus,
The volume of the rectangular prism = Base area x Height
= 14.72 x 11.3
= 166.336 cubic cm
Therefore, the volume of the rectangular prism = 166.336 cubic cm
Hence, option C is correct.
Solution: The given random experiment follows Binomial distribution with 
Let 
be the number of adults who use their smartphones in meetings or classes.
Therefore, we have to find:
We know the binomial model is:
Therefore, the probability that fewer than 3 of them is 0.1111
Set up a proportion.
The total side of the “top” line is 8 + 10 = 18. The total side of the “bottom” line is 45. This makes the ratio 18/45.
Now we are trying to find the “larger” bottom segment, let it be x. Because the lines are parallel, the ratio of the “larger” top and bottom segments is equal to the ratio of the whole top and bottom lines.
So 18/45 = 10/x
Reduce 2/5 = 10/x
Cross multiply 2x = 50
Solve x = 25
