Answer:
The arc length of the semicircle is
or 
Step-by-step explanation:
The complete question in the attached figure
we know that
The circumference of a semicircle is given by the formula

where
D is the diameter of the semicircle
we have

substitute

----> exact value
Assume

----> approximate value
therefore
The arc length of the semicircle is
or 
Answer:
(x²+5) (x-3)²
Step-by-step explanation:
x³ - 3x² + 5x - 15
x²(x-3) + 5(x-3)
(x²+5) (x-3)²
Answer:
15
Step-by-step explanation:
12 13 14 15 17 19 22
you need to arrange the numbers in order from the smallest value to the largest
ANSWER
10.0 ------- Vivian is correct
EXPLANATION
Firstly, find the cube root of 1010
![\sqrt[3]{1010\text{ }}\text{ = 10.033}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B1010%5Ctext%7B%20%7D%7D%5Ctext%7B%20%3D%2010.033%7D)
In the above calculation, the cube root of 1010 is 10.003
The correct approximation of the above value is 10.0. This is because the hundredth value is not upto 5
Recall, figures from 1 - 4 are rounded to zero and figures from 5- 9 are rounded up to 1
since 3 is not upto 5, so it is rounded down to zero
Therefore, Vivian is correct