**Answer:**

**20 violins were sold the answer is 20**

**Step-by-step explanation:**

**Answer: The sum of the lengths of any two sides of a triangle must be greater than the length of the third side. Since, 11 + 21 > 16, 11 + 16 > 21, and 16 + 21 > 11, you can form a triangle with side lengths 11 mm, 21 mm, and 16 mm.
**

**Step-by-step explanation:**

<u>**Answer:**</u>

**Option D is the correct answer.**

**D. This is a linear function because there is a common difference of 2.**

<u>**Step-by-step explanation:**</u>

**Linear function--**

**A function is said to be linear if the rate of change is constant.**

**i.e. the function is increasing by a fixed constant.**

**Here the table is given by:**

**Hour (x) Number of Customers f(x)**

** 1 2**

** 2 4**

** 3 6**

**From the table of values we observe that as the value of increasing by 1 the value of y is increasing by 2.**

**i.e. the rate of change is constant i.e. 2.**

**Also, the common difference is 2.**

**Since,**

**4 - 2 = 2**

**and **

**6 - 4 = 2**

**Hence, the table represents a linear function.**

I believe its c, sorry if im wrong.

Recall that the component form of a vector that goes from point (x,y) to point (v,w) is:

Therefore the component form of the vector that goes from point A to point B is:

Simplifying the above result we get:

**Answer:**