Math 14

Question 1:

When x = -2 and y = 4, what is the value of 3x² – 5xy + 2?

Question 2:

One side of a square ABCD is 14” long. A rectangle with the same area as square ABCD has a length of 28”. What is the rectangle’s width, in inches?

Question 3:

The probability that a specific event, A, happens is denoted by P(A). The probability that the event does not happen is denoted P(not A). Which of the following is always true?

Question 4:

What is the least common multiple of the numbers 1,2,3,4 and 8?

Question 5:

The graph of x²/16 + y²/49 = 1 has an x-intercept at which of the following points?

Question 6:

The triangle shown in the standard (x,y) coordinate plane has vertices as marked. If each coordinate is multiplied by 4, what will be the area, in square coordinate units, of the triangle with the resulting points as vertices?

Question 7:

[Non-Calculator Question]

If (x,y) is the solution to the system of equations below, what is the value of x?

x/y = 5

3(y + 2) = x

Question 8:

[Calculator Question] The distance traveled by Earth in one orbit around the Sun is about 942,000,000 kilometers. If Earth makes one complete orbit around the Sun in one year, which of the following is the closest to the average speed of the Earth, in kilometers per hour, as it orbits the sun?