NC Math 4 Final Exam

Front

What are the compass directions?

Back

Compass directions indicate the orientation of a point in relation to the cardinal directions (North, East, South, West) and can be expressed in degrees. For example, '26-degrees East of South' means you start facing South and turn 26 degrees towards the East.

Front

How do you determine the number of columns in a matrix?

Back

The number of columns in a matrix is defined by the second number in its dimensions. For a 5 x 4 matrix, there are 4 columns.

Front

How do you calculate the probability of drawing two purple marbles from a box without replacement?

Back

To find the probability of drawing two purple marbles from a box containing 5 purple, 3 green, and 2 orange marbles, use the formula: P(both purple) = (5/10) * (4/9) = 20/90 = 2/9.

Front

What is the Law of Sines?

Back

Front

What is the ratio for TanC in a right triangle?

Back

Front

What is the formula for the area of a triangle?

Back

Front

How do you find the slope of a line given two points?

Back

Front

What is the Pythagorean theorem?

Back

Front

What is a matrix?

Back

A matrix is a rectangular array of numbers arranged in rows and columns. It is used in various mathematical computations, including solving systems of equations.

Front

What is the difference between permutations and combinations?

Back

Permutations consider the order of selection, while combinations do not. For example, the arrangement of 3 letters (A, B, C) as ABC is different from ACB in permutations, but the same in combinations.