Đề thi Olympic Tiếng Anh lớp 9 vòng 6 năm 2013 - 2014
The formula for V, the volume of a right circular cone, is V = πr2h/3, where r is the radius of the base and h is the height of the cone. What formula correctly expresses h in terms of r and V?
Leroy has a number cube with sides labeled 1 through 6. He tosses the number cube 4 times. Each toss results in a 5. What is the likelihood that the next toss will result in a 5?
A committee consisting of 5 teachers will be chosen from a staff of 25 teachers. To find the number of different possible 5-teacher committees, which should be used?
Trapezoid RSTU is shown on the grid. Which graph shows the image of trapezoid RSTU after it is translated 5 units up and 3 units to the left?
E. None of them
Bob created a number pattern beginning with 3. He created the next term by doubling the previous term and subtracting 1. The first 5 terms of the number pattern are 3, 5, 9, 17, 33, ... What is the 7th term in Bob's number pattern?
Student council members plan to sell shaved-ice cones to raise funds. Their will spend $200 for supplies and will charge $1.00 for each shared-ice cone. Which graph represents P, their profit, as a function of n, the number of cones sold?
E. None of them
Marion scored 85, 78, 74, 75, 93, and 95 on six tests. What is the range of these six scores?
What is the value of the expression a2 +∣ab∣ when a = -4 and b = 3?
This net is folded to produce a three-dimensional object. Which object will this net produce?
E. None of them
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