What is the Inverse of function ? f(x) = x + 7
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A. 1-1(x) = (t – 7), for x > 7
B. 1-1(x) = (x + 7), for * > -7
C. 1-1(x) = x2 + 7, for I > -7
D. 1-1) = r2 - 7, for I > 7
=

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4

Caitlin had 402. in her bank account.she withdrew $15.each week to pay for swimming lesson. she now has $237.