Ray bisects , the measure of is 11x°, and the measure of is (4x + 18)°. What is the measure of ? A. 12° B. C. 42° D. E. 66°

For -π/2 ≤ θ ≤ π/2, |sinθ| ≥ 1 is true for all and only the values of θ in which of the following sets? A. {-π/2, π/2} B. {π/2} C. {θ | -π/2 < θ < p/2} D. {θ…

Given a positive integer n such that in = 1, which of the following statements about n must be true? (Note: i2 = -1) A. When n is divided by 4, the remainder is 0. B. When n is divided…

For what positive real value of k, if any, is the determinant of the matrix equal to k? (Note: The determinant of matrix equals ad – bc.) A. 3 B. 4 C. 12 D. E. There is no such value…

At the school carnival, Mike will play a game in which he will toss a penny, a nickel, and a dime at the same time. He will be awarded 3 points for each coin that lands with heads faceup. Let…

What is the period of the function f(x) = csc(4x)? A. π B. 2π C. 4π D. π/4 E. π/2

One of the following graphs in the standard (x, y) coordinate plane is the graph of y = sin2x + cos2x over the domain -π/2 ≤ x ≤ π/2. Which one? A. B. C. D. E.

The 3rd and 4th terms of an arithmetic sequence are13 and 18, respectively. What is the 50th term of the sequence? A. 248 B. 250 C. 253 D. 258 E. 263

You are given the following system of equations: y = x2 rx + sy = t where r, s, and t are integers. For which of the following will there be more than one (x, y) solution, with real-number coordinates,…

The list of numbers 41, 35, 30, X, Y, 15 has a median of 25. The mode of the list of numbers is 15. To the nearest whole number, what is the mean of the list? A. 20 B. 25…