Question 1:
Find x in the following figure, MN // BC.
Answer: x = …
(Write your answer by decimal in the simplest form)
Mời các em tham gia làm bài test Đề thi Violympic Toán Tiếng Anh lớp 9 vòng 1 năm 2016 - 2017. Ở vòng 1 này các em sẽ làm quen với cấu trúc bài thi và dạng đề qua các bài tập thực hành cơ bản. Hi vọng rằng, những bài tập này sẽ giúp ích cho các em trong những kì thi quan trọng sắp tới. Chúc các em thành công.
Question 1:
Find x in the following figure, MN // BC.
Answer: x = …
(Write your answer by decimal in the simplest form)
The product of (x + 4) and (x - 3) is equal to …
Suppose a parallelogram has an erea of 36 square feet and the hight is 4 feet. What is the mesurement of the base?
Answer: The measure of the base is … feet
The ereas of two similar triangles ABC, MNP are 189 cm² and 336 cm² respectively. If AB = 144 cm then MN = …cm
The value of with x = 1/2 is …
(Write your answer by fraction in the simplest form)
The value of x(x + 2014) - x - 2014 with x = 2 is…
Find the greatest integer number x such that the value of 4(2 - 3x) - (5 - x) is greater than the value of 11 - x.
Answer: x = …
Find the value of the constant a such that the polynomial f(x) = x4 + 5x³ + 15x + a is divisible by g(x) - x² + 3.
Answer: a = ...
The maximum value of is …
(Write your answer by fraction in the simplest form)
How many diagonals does a polygon with 36 sides have?
Answer: There are … diogonals.
Given the equation |3x - 1| = |2 + x|.
The average (arithmetic mean) of all the roots of the above equations is…
(Write your answer by fraction in the simplest form)
Find the value of x (the length of OQ) in the following figure.
Answer: x = …
Given a rectangle such that its width is a half as its length.
The ratio of the perimeter of the rectangle to its width is …
Given a polynomial f(x) such that:
Find the value of x that makes this fraction undefined
Answer: A = {…}
(Write your answer from least to greatest and use “;” between the number)
If a,b,c are three side lenght of a triangle such that:
a2 + b2 + c2 = ab + bc + ca, then what is kind of that triangle?
The function f(x) = -(3 - 2x)² - (4x + 1)² + 6 reaches the maximum value at x = …
(Write your answer from least to greatest and use “;” between the number)
Find the solution of the following equation: ||x| - 1| = x + 1
The triangle ABC has corner A = 90º, corner B = 30º and the median line AM. The measuare of corner CAM = ….
The value of P = 3x(x²- 2x + 3) - x²(3x - 2) + 5(x² - x) with x = 5 is …
Given f(x) = x4 - 7x² - 144. Find the smallest value of x such that f(x) = a
Answer: The smallest value of x is …
The value of M with x = -5; y = 10 is ….
It takes Tom 4 hours to built a fence. If he hires Jack to help him, together they can do the job in jusst 3 hours.
If Jack built the same fence alone, how long would it take him?
Answer: It takes Jack …. hours.
The value of the integer x such that: 4.3x + xx + 1 = 189 is ….
The number of weeks the age of Zack’s grandfather is equal to the number of the day the age of Zak.
It is shown that the grandfather is 60 years older than grandson.
So for how many years when Zack’s grandfather’s age is five time Zack’s age?
Given f(x) 2x³ + 6x², g(y) = y² + 3y. How many values of k such that f(k) = g(k)?
The main diagonal of a cube has the lenght of 2√3 inches.
The volume of that cube is … cubic inches.
John drove the first half of the road AB with the speed 40km/h and drove the rest part of the road with 600km/h.
Caculate John’s average speed on the whole journey.
Answer: ... km/h