Answer: B. 10

-5C3 or 5 choose 3 refers to how many combinations are possible from 5 items, taken 3 at a time. To calculate combinations, we will use the formula nCr = n! / r! ... * (n - r)!, where n represents the total number of items, and r represents the number of items being chosen at a time.

-10 is the total number of all possible combinations for choosing 3 elements at a time from 5 distinct elements without considering the order of elements in statistics & probability surveys or experiments. The number of combinations for sample space 5 CHOOSE 3 can also be written as 5C3 in the format of nCr or nCk.

Step-by-step explanation: Hope this help :D

**Answer:**

Prism

**Step-by-step explanation:**

Pls give Brainliest.

**Answer:**

Length of AB = 4.4721

Equation of line BC: y = -2x + 6

**Step-by-step explanation:**

To find the length of the line AB, we just need to find the distance between the points A and B.

We can find distance with the equation:

To find the equation of the line BC, first let's find the slope of the line AB.

This slope is given by:

The line AB is perpendicular to the line BC (because mB = 90°), so the slope of line BC is:

so the line BC is:

To find the value of b, we can use the point B (1,4):

So we have:

By subtract this problem, I got answer C .44.22.Right?