Kiểm Tra Toán Khối 10

A box contains two yellow marbles and three red marbles. How many ways can you take out two marbles from the box?

If you flip a coin three times, how many outcomes are there?

• 4.

• 6.

• 8.

The formula for calculating the number of permutations of n elements taken r at a time is:

The results of the Math exam for class 10A of THPT are presented in the frequency distribution table below:

• 8.

The equation of a circle with center (h, k) and radius r is

The equation of a circle with center (h, k) and radius R has the form:

• (x-b)²+(y-a)²=R²

• (x+a)²+(y+b)²=R²

• (x-a)²-y-b²=R².

• (x-a)²+(y-b)²=R²

In the plane, given the line L, a normal vector of L is

From the digits, randomly take a number. What is the probability of getting a prime number?

Find the median of the following data set:

The polynomial P(x) is the expansion of which of the following binomials?