自測試題一（1）

Time -30 minutes
    30 Questions
    In the rectangular coordinate system， the circle with
    center P is tangent to both the x- and y-axes.
    1. The x-coordinate of P The y- coordinate of P
    2. 1
    3.
    The square is inscribed in the circle.
    4. The length of a diagonal The length of a diameter
    of the square of the circle
    x    5. x y 35
    In college M the average （arithmetic mean） number of
    students per course is 30 and the ratio of the number
    of students to the number of faculty is 20 to 1.
    6. The total number 600
    of students in
    College M
    x > 0
    7.
    8. x 80
    Integer n will be randomly selected from the
    integers 1 to 13， inclusive.
    9. The probability that The probability that
    n will be even n will be odd
    p q = 1
    0 < p < q
    10. 1
    2x 3y = 29
    3x 4y = 41
    11. x y 12
    PQ = OQ = 5
    12. The area of region OPQ 10
    13. 20
     =
    n， r， s， and t are positive integers.
    14. 2n r 2s t
    In the xy-coordinate system， the point （x， y） lies on the circle with equation x y = 1
    15. x y 1.01
    16. A health food store prepares a breakfast food that
    consists of oats， raisins， and nuts mixed in the ratio
    9：2：1， respectively， by weight. If the nuts in the
    mixture weigh 9.2 pounds， how many pounds does the
    total mixture weigh？
    （A） 82.2
    （B） 92.2
    （C） 101. 2
    （D） 110.4
    （E） 165.6