Find a formula for the nth term of the arithmetic sequence 32, 36, 40, 44

To find the formula for the nth term of the given arithmetic sequence, we first need to identify the first term and the common difference. The first term of the sequence (a1) is 32. Next, to find the common difference (d), we subtract the first term from the second term: d = 36 – 32 […]

If angle BAC measures 56, what is the measure of angle BDC: 28, 34, 56, or 112?

To determine the measure of angle BDC given that angle BAC measures 56 degrees, we first note the relationship between these angles within the geometrical figure they belong to. If we assume that points A, B, C, and D form specific angles, we can analyze the scenario based on the properties of angles in triangles […]

For what real numbers x is the value of x² – 6x + 9 negative?

To determine for which real numbers x the expression x² – 6x + 9 is negative, we first need to analyze the quadratic equation. We can start by rewriting the expression: x² – 6x + 9 can be factored as (x – 3)². This means that the expression represents a perfect square. The key property […]

How can I solve the system of equations 2xy = 7 and 5xy = 9?

To solve the system of equations 2xy = 7 and 5xy = 9, we can start by expressing each equation in terms of xy. From the first equation: 2xy = 7 can be rearranged to find the value of xy: xy = 7/2 From the second equation: 5xy = 9, we can also express xy: […]