Consider the set with an operation  defined by the table. means find the entry in row a and column b; for example,

data-wiris-created="true" src="https://sciemce.com/media/3/ppg__cognero__5.1_Natural_Numbers__media__9e3c5c13-073e-4c53-aaa5-b04009a5de98.PNG" style="vertical-align: middle;" /> (the entry in row 7 and column 9). Find .

 1 4 7 9 1 9 7 1 4 4 7 9 4 1 7 1 4 7 9 9 4 1 9 7



Fill in the blank(s) with the appropriate word(s).

---

Answer: 4

Mathematics

Solve the problem.A technician has readings that take 3 minutes each to read and record. How many readings can be completed in 240 minutes?

A. 9 readings B. 241 readings C. 72 readings D. 800 readings

Find the equation of a circle satisfying the given conditions.Center: (2, -9); radius: 9

A. (x + 2)2 + (y - 9)2 = 81 B. (x - 9)2 + (y + 2)2 = 9 C. (x - 2)2 + (y + 9)2 = 81 D. (x + 9)2 + (y - 2)2 = 9

Solve the inequality. Write the solution in interval notation.x3 ? 27

A. [3, ?) B. (-?, -3] ? [3, ?) C. [-3,  3] D. (-?, 3]

Perform the indicated operations.(7x + 2y)2

A. 7x2 + 4y2 B. 7x2 + 28xy + 4y2 C. 49x2 + 28xy + 4y2 D. 49x2 + 4y2