Chọn ngẫu nhiên 50 sinh viên của một trường đại học thì có thấy 21 nữ. Hãy ước lượng tỉ lệ nữ ở trường đại học đó với độ tin cậy 95%

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)