The sum of two numbers is 21. The second number is six times the first number. Work out the two numbers

Which term best describes the association between variables a and b

If chord ab is congruent to chord cd, then what must be true about ef and eg?

Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.