how many center of symmetry does the uppercase have
How many integer solutions does the following equatios have?
(x2 - x - 1)x+2000 = 1
(HOMC2017) How many pairs of positive interger (x,y) are ther those satisfy the identity 2^x-y^2=1? Các bạn trình bày bằng tiếng Anh giúp mình nhé!!!
A survey showed that of 120 secondary school students: 52 of them have a dog, 31 of them have a cat and 19 of them have both.
How many of the 120 students have neither a dog nor a cat?
Toán tiếng Anh : A survey showed that of 120 secondary school students: 52 of them have a dog, 31 of them have a cat and 19 of them have both.
How many of the 120 students have neither a dog nor a cat? Answer: {} students
we have 1234 is a four-digit number that the product of it is 24.how many 4-digit number that the product of it is 24?
Find the number of 3-digit positive numbers that have product of digits equals to 21.
If you walk 45 minutes at a rate 4km/h and then run for 30 minutes at a rate of 10km/h, how many kilometers will you have gone at the end of one hour and 15 minutes?
Câu này em hỏi nhiều lần mà vẫn chưa có câu trả lời đúng.
How many integers from 1 to 2008 have the sum of their digits divisible by 5?
Có bao nhiêu số nguyên từ 1 đến 2008 có tổng các chữ số chia hết cho 5?
Giải IN Tiếng Anh please =)