A circuit to run a model railroad has 8 switches. two are defective. if a person selects 2 switches at random and tests them, find the probability that the second one is defective, given that the first one is defective.

how 8/33 into a decimal

An object is propelled vertically upward from the top of a 256-foot building. The quadratic function s (t) = -16t squared + 192t + 256 models the ball's height above the ground, s (t), in feet, t seconds after it was thrown.

Find the radius of a circle in which the central angle, a, intercepts an arc of the given length s. a = 156°, s = 25 km

A sample of a material has 40000 radioactive particles in it today. Your grandmother measured 80000 radioactive particles in it 80 years ago. How many radioactive particles will the sample have 80 years from today?

Fourteen is what percent of 56? 42% 7.8% 4% 25%

A tree 7 ft. tall grows an average of 6in. each year. Which equation models the tree's height h after x years?

Korey is planning to open a comic book store. He has developed the following expense breakdown for set-up and operation for the first year. Korey has $8,500 in savings and $25,000 in inheritance money to use to open his store.

Mr. Yu applies 1/2 ounce of fertilizer to every 5/8 square meter of his lawn. How many ounces of fertilizer does Mr. Yu use per square meter for his lawn?

in order to fence a garden the Rowan family needs 64 feet of lumber the garden at the careers house will need to be 150% larger how many feet of lumber will they need

Nine people plan to share equally 24 stamps from one set and 36 stamps from another set. Explain why 9 people cannot share the stamps equally