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

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 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).

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Answer: 4

Mathematics

Plot the point whose polar coordinates are given.(-2, -5?/4)

A.

B.

C.

D.

Translate the sentence into an equation using the variable x.The total of a number and 5.1 is equal to 15.1.

A. x = 5.1 + 15.1 B. x + 15.1 = 5.1 C. x + 5.1 = 15.1 D. x - 5.1 = 15.1

Find the probability.The age distribution of students at a community college is given below.  Age (years)Number of students (f)1111?A student from the community college is selected at random. Find the probability that the student is at least 31. Round your answer to three decimal places.

A. 0.073 B. 0.927 C. 0.051 D. 81

The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r = cos ?

A. x2 + y2 = y B. (x + y)2 = y C. (x + y)2 = x D. x2 + y2 = x