For the given equation, replace n with the indicated number and decide whether this number is the solution.n + 13 = 20; replace n with 7

A. Yes
B. No


Answer: A

Mathematics

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Determine whether the graph of the equation is a circle or an ellipse.9x2 + 90x + 25y2 - 50y + 25 = 0

A. Ellipse B. Circle

Mathematics

Give the domain and range of the relation.

A. domain: (-?, ?); range: [2, ?) B. domain: [2, ?); range: (-?, ?) C. domain: (2, ?); range: (6, ?) D. domain: (-?, ?); range: (-?, ?)

Mathematics

Find the indicated probability.The following contingency table shows age at retirement (broken down by career) for a group of retired people.Retirement AgeSuppose one of these people is selected at random from the 50-55 age group. Find the probability that the person selected was a store clerk

A. 0.267 B. 0.099 C. 0.321 D. 0.026

Mathematics

Solve the problem.Given mx + ny = p, solve for x and find the value of x when m = 1, n = 4, y = -5, and p = 3.

A. x = ; x = - 17
B. x = ; x = 23
C. x = m(p - ny); x = 23
D. x = m(p + ny); x = -17

Mathematics