The circumference of a planet is about 23,000 miles. find its diameter to the nearest mile.

What is the missing constant term in the perfect square that starts with x^2 -20x

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

In the 30-60-90 triangle below side s has a length of and side r has a length