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In the diagram shown, C is the midpoint of segment BD and B is the midpoint of segment AD. If BC = 10, what is the measure of AC?CorrectIncorrect
An advertisement features a TV listed at 1/4 off the original price of $450. A 7% sales tax is applied to the purchase at checkout. If the customer pays $400 in cash, how much change, if any, does he get back?CorrectIncorrect
(x4 + 4)(x4 – 4) = ?CorrectIncorrect
If f(x) = 4x2 + 3 and g(x) = 2x2 – 4x, what is the value of f(g(-2))?CorrectIncorrect
What is the area of the trapezoid shown?CorrectIncorrect
In trigonometry, an angle of -2∏/3 radians has the same sine and cosine as an angle that has which of the following measures in degrees?CorrectIncorrect
[non-calculator] Which of the following expressions is equal to 0 for some value of x?CorrectIncorrect
[calculator allowed] A hot dog stand uses the expression 3 + 1.25x to determine the cost of a hot dog with x toppings. How much do two hot dogs — one with 1 topping, the other with 4 toppings — cost?CorrectIncorrect