Let's put a little geometry into geometric series! The spiral in the picture is made from 45° right triangles. The smallest triangle (red) has a side length of
1. You can use the Pythagorean theorem to find that the length of its
hypotenuse is 2. The next (orange) triangle has a side length exactly
matching the hypotenuse of the smallest triangle (which was just mentioned
as being 2). The next (yellow) triangle has a side length of 2; the next
triangle has a side length of 22, and so on.
The areas of the colored triangles, calculated with the formula
2.
• base • height, are 3. 1.2.4, and so on. What is the area of this entire
colorful figure?

Fran would like to estimate the mean amount of time it takes people in her town to travel to work. the town's population is 150,000 and about 90,000 of those are working adults. which statements are true? select each correct answer. there is no way to infer the value of the mean. she must collect data for all 90,000 working adults and calculate the mean. a larger sample of working adults will provide a better estimate of the true mean than a smaller sample. the population of working adults is too large for using a sample to estimate the mean of the entire group. if she takes a random sample of the population of working adults in her town, the mean for that group is likely close to the mean for the entire group.

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left