Rylan is calculating the standard deviation of a data set that has 9 values. He determines that the sum of the squared deviations is 316. What is the standard deviation of the data set? Round the answer to the nearest tenth

If the radius of a sphere is increased by 5 cm so that the area of the sphere obtained is increased by 400pi square cm. What was the radius before the increase

An object has a mass of 150 g and a volume of 30 ml what is the density?

He following data set shows the pulse rate of some horses at a farm: 35, 38, 33, 39, 39, 40, 33, 39, 37, 33, 40, 34, 38, 35, 39 Which dot plot best represents the data?

Sydney has piles of 10 stickers sheets. She has 100 sheets in all. How many piles does she have?

What annual simple interest rate will increase Jacob Davidson's initial investment of $5,000 to $6,000 in two years? multiple choice A) 10% B) 5% C) 4% D) 6%

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.